Updated on 2026/03/28

写真a

 
NOHIRA NAOKI
 
Organization
Institute of Integrated Research Materials and Structures Laboratory Assistant Professor
Title
Assistant Professor
Homepage
https://t2r2.star.titech.ac.jp/cgi-bin/researcherinfo.cgi?q_researcher_content_number=CTT100740212
External link

Degree

  • Doctor of Engineering ( 2022.3   Tokyo Institute of Technology )

Research Interests

  • Titanium alloys

  • Shape memory alloys

  • Superelastic alloys

  • Phase transformation

Research Areas

  • Nanotechnology/Materials / Structural materials and functional materials

  • Nanotechnology/Materials / Metallic material properties

Education

  • Tokyo Institute of Technology   School of Materials and Chemical Technology   Department of Materials Science and Engineering

    2019.4 - 2022.3

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  • Tokyo Institute of Technology   School of Materials and Chemical Technology   Department of Materials Science and Engineering

    2017.4 - 2019.3

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  • Yokohama National University   College of Engineering Science   Department of Mechanical Engineering and Materials Science

    2013.4 - 2017.3

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    Notes： Materials Science and Engineering Program

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Research History

  • Tamagawa University   Graduate School of Engineering Mechanical Engineering Major

    2025.4

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    Country：Japan

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  • Institute of Science Tokyo   Institute of Integrated Resarch   Assistant Professor

    2024.10

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    Country：Japan

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  • Tokyo Institute of Technology   Institute of Innovative Research   Assistant Professor

    2024.4 - 2024.9

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  • Tokyo Institute of Technology   Institute of Innovative Research   Specially Appointed Assistant Professor

    2023.4 - 2024.3

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  • Tokyo Institute of Technology   Institute of Innovative Research   Postdoctoral Researcher

    2022.4 - 2023.3

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Professional Memberships

  • The Japanese Institute of Addidive Manufacturing

    2025.4

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  • The Japan Institute of Titanium

    2022.8

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  • The Japanese Society of Microscopy

    2019.4

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  • The Japan Institute of Light Metals

    2019.4

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  • The Japan Institute of Metals and Materials

    2018.1

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Committee Memberships

  • 日本金属学会 関東支部   ヤングメタラジスト研究交流会 運営委員  

    2024.6   

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    Committee type：Academic society

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Papers

  • FeNi particles as magnetic modulators for large magnetic-field-induced strain in Ni–Mn–Ga/polymer composites Reviewed International coauthorship International journal

    Wan-Ting Chiu, Chengxi Wang, Fumiya Tanaka, Naoki Nohira, Masaki Tahara, Volodymyr Chernenko, Hideki Hosoda

    Materials Letters   412   140404   2026.6

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.matlet.2026.140404

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  • Transfer learning approach with Voronoi-based synthetic data for high-accuracy segmentation of equiaxed grain boundaries Reviewed International journal

    Koichi Ozaki, Naoki Nohira, Masaki Tahara, Ituso Kumazawa, Hideki Hosoda

    Computational Materials Science   262   114378   2026.1

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier  

    DOI： 10.1016/j.commatsci.2025.114378

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  • Magnetostrain behavior of particle grid in particulate Ni–Mn–Ga(Fe)/silicone rubber composites Reviewed International coauthorship International journal

    Wan-Ting Chiu, Chengxi Wang, Naoki Nohira, Masaki Tahara, Volodymyr Chernenko, Hideki Hosoda

    Journal of Materials Research and Technology   39   8553 - 8561   2025.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.jmrt.2025.11.147

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  • Systematic investigation of the effect of Cr and Sn element-tailored Ti-based shape memory alloys on their functional properties Reviewed International journal

    Wan-Ting Chiu, Naoki Nohira, Nao Otaki, Masaki Tahara, Tomonari Inamura, Hideki Hosoda

    Journal of Alloys and Compounds   1045   184764 - 184764   2025.11

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jallcom.2025.184764

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  • Effect of Aging Heat Treatment on Precipitates and Mechanical Properties of Ti-Cr-Sn Superelastic Alloys with High Sn Content Reviewed International journal

    Masaki Tahara, Naoki Nohira, Takahiko Igarashi, Cheng Chen, Wan-Ting Chiu, Hideki Hosoda

    Materials Transactions   66 ( 10 )   1307 - 1312   2025.10

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.2320/matertrans.MT-M2025044

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  • Investigations of the β-Ti shape memory alloys via neutral element stabilization and their microstructures, phase constituents, and phase transformation Reviewed

    Wan-Ting Chiu, Naoki Nohira, Ryo Saito, Masaki Tahara, Hideki Hosoda

    Materials Chemistry and Physics   340   130817   2025.8

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.matchemphys.2025.130817

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  • Formation of Nanoscale Aging Products and Their Effects on the Mechanical Properties of a Metastable β-Ti Based Shape Memory Alloy Reviewed

    Naoki Nohira, Masaki Tahara, Hideki Hosoda

    ACS Applied Engineering Materials   3 ( 5 )   1210 - 1219   2025.5

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsaenm.5c00086

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  • An unusual approach significantly improving the magnetostrain performance of Ni-Mn-Ga composite materials Reviewed International coauthorship

    DongKeun Han, Wan-Ting Chiu, Masaki Tahara, Naoki Nohira, Volodymyr Chernenko, Senentxu Lanceros-Mendez, Hideki Hosoda

    Scripta Materialia   261   116624   2025.5

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.scriptamat.2025.116624

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  • Exploration of hypereutectoid compositions for achieving and enhancing superelasticity in biomedical Ti–Au–Mo alloys Reviewed

    Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    Materials Science and Engineering: A   928   148095   2025.4

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.msea.2025.148095

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  • Machine learning-based prediction of the mechanical properties of β titanium shape memory alloys Reviewed

    Naoki Nohira, Taichi Ichisawa, Masaki Tahara, Itsuo Kumazawa, Hideki Hosoda

    Journal of Materials Research and Technology   34   2634 - 2644   2025.1

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jmrt.2024.12.244

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  • Comprehensive mapping of mechanical properties and martensitic transformation in Ti–Al–Mo standard ternary system: Integrating literature data and fabricating novel high-Al-content superelastic alloys Reviewed

    Naoki Nohira, Kenta Hayashi, Keigo Kimura, Masaki Tahara, Hideki Hosoda

    Journal of Alloys and Compounds   1009   176841   2024.12

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jallcom.2024.176841

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  • MECHANICAL PROPERTIES OF Ti–Mo–Al SHAPE MEMORY ALLOY AGED AT α″ REGION

    Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    Proceedings of the 15th World Conference on Titanium   3   27 - 29   2024.10

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： 10.7490/f1000research.1119883.1

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  • Mechanical properties of various thermomechanical processed Ti-Mo-Al-Zr and pseudo-binary (Ti-Zr)-Mo shape memory alloys for biomedical applications Reviewed

    Wan-Ting Chiu, Ryunosuke Hayakawa, Naoki Nohira, Masaki Tahara, Tomonari Inamura, Hideki Hosoda

    Materialia   37   102194   2024.9

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.mtla.2024.102194

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  • Evaluations of Mechanical Properties and Functionalities of the Al- and Zr-Tailored Ti–5.5Mo Shape Memory Alloys for Biomedical Applications Reviewed

    Wan-Ting Chiu, Ryunosuke Hayakawa, Naoki Nohira, Masaki Tahara, Tomonari Inamura, Hideki Hosoda

    Metallurgical and Materials Transactions A   55   4200 - 4211   2024.8

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    Due to the critical world population aging issue, biomaterials are important topics in the biomedical community. Among the biomedical materials, shape memory alloys (SMAs) are considered to be promising materials owing to their functionalities, such as shape memory effect (SME) and superelasticity (SE). Ti–Mo–Al-based alloys, which are biocompatible materials, are basic materials in the Ti-based SMAs due to the evaluation of the phase stability through the calculations of Mo and Al equivalents. This study, in addition, introduced Zr into the Ti–Mo–Al-based alloys for its highly biocompatibility and being a fine modifier to tune the phase stability. The mechanical (i.e., strength and elongation) and functional (i.e., SME and SE) properties have been investigated in this study to reveal the practicability of the biomedical applications for human usage. It was found that addition of Zr to the Ti–Mo alloy shows slight influence on the mechanical properties of the binary Ti–Mo alloy. With the addition of Al, that is, ternary Ti–Mo–Al alloys, two-stage yielding was found in the tensile examinations. Among all the alloys, the Ti–5.5Mo–4Al, the Ti–5.5Mo–4Al–6Zr, and the Ti–5.5Mo–8Al–6Zr (mol pct) alloys performed excellent shape recovery of about 100 pct in the bending and heating tests. Especially, the Ti–5.5Mo–4Al–6Zr and the Ti–5.5Mo–8Al–6Zr alloys further show high strength. Results in this study could be a guideline for the design of the fundamental Ti–Mo–Al-based SMAs.

    DOI： 10.1007/s11661-024-07529-y

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    Other Link： https://link.springer.com/article/10.1007/s11661-024-07529-y/fulltext.html

  • Microstructural changes and mechanical property response to aging heat treatment in hypereutectoid Ti–Au–Mo biomedical alloys Reviewed

    Naoki Nohira, Wan-Ting Chiu, Masaki Tahara, Hideki Hosoda

    Materials Science and Engineering: A   912   146956   2024.7

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.msea.2024.146956

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  • EFFECT OF ANNEALING TEMPERATURE ON MECHANICAL PROPERTIES OF TITANIUM–GOLD–MOLYBDENUM ALLOYS Reviewed

    N. Nohira, W.-T. Chu, M. Tahara, H. Hosoda

    Proceedings of the Biomaterials International 2024   1054   2024.6

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)  

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  • Correspondence of the aging behaviors and the phase constituents of the Ti-Mo-based alloys tailored by the Al and Zr additions Reviewed

    Wan-Ting Chiu, Ryunosuke Hayakawa, Naoki Nohira, Masaki Tahara, Tomonari Inamura, Hideki Hosoda

    Journal of Alloys and Compounds   991   174509   2024.4

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jallcom.2024.174509

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  • On polymorphic crystal growth in a Ti-Ni-Cu-Fe system metallic glass at the glass-transition temperature Reviewed International coauthorship

    D.V. Louzguine-Luzgin, Yu.P. Ivanov, V. Semin, N. Nohira, H. Hosoda, A.L. Greer

    Scripta Materialia   242   115927   2024.3

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.scriptamat.2023.115927

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  • Effects of 3d Transition Metal Substitutions on the Phase Stability and Mechanical Properties of Ti–5.5Al–11.8[Mo]eq Alloys Reviewed

    Naoki Nohira, Keiko Widyanisa, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    Materials   16 ( 13 )   4526   2023.6

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：MDPI AG  

    DOI： 10.3390/ma16134526

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  • Shape memory effect and aging behavior of Bi-added Ti–Cr alloys for biomedical applications Reviewed

    Naoki Nohira, Kenta Hayashi, Masaki Tahara, Hideki Hosoda

    Journal of the Mechanical Behavior of Biomedical Materials   141   105800   2023.5

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jmbbm.2023.105800

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  • Effect of aging on isothermal ω/α″ growth and resulting mechanical behaviors of the Ti–Mo–Al high temperature shape memory alloys Reviewed

    Naoki Nohira, Yoshiaki Oshita, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    Materials Characterization   199   112850   2023.5

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.matchar.2023.112850

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  • Fabrication and mechanical properties of Bi-added Ti–Cr alloys for biomedical applications Reviewed

    Naoki Nohira, Kenta Hayashi, Masaki Tahara, Hideki Hosoda

    Journal of Materials Research and Technology   23   5644 - 5652   2023.3

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jmrt.2023.02.173

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  • Microstructure characteristics and superelastic properties of novel Ti–Cr–Sn superelastic alloys Reviewed

    Minsoo Park, Wan-Ting Chiu, Naoki Nohira, Masaya Iwasaki, Masaki Tahara, Hideki Hosoda

    Materials Science and Engineering: A   869   144790   2023.2

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.msea.2023.144790

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  • Investigations of Deformation Behavior and Microstructure of Al Tailored Ti–Mo High Temperature Shape Memory Alloys during Isothermal Holding at 393 K Reviewed

    Naoki Nohira, Yoshiaki Oshita, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    Micro   2 ( 1 )   113 - 122   2022.1

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：MDPI AG  

    To utilize β-Ti based high temperature (HT) shape memory alloys (SMAs), a high Al concentration of 14 mol% was designed for sufficient suppressing the undesired ω-phase. HTSMA exhibits shape memory effect (SME) above 373 K, and thus the operating temperature is over 373 K. However, the SME and the mechanical properties of most β-Ti SMAs deteriorate after holding at elevated temperatures due to the ω-embrittlement. The Ti-4.5Mo-14Al alloy (mol%) and the Ti-6Mo-7Al alloy as a comparison, both of which possess the identical reverse martensitic transformation start temperature of 407 K, were isothermally held at 393 K for up to 360 ks, and deformation behaviors and microstructures were investigated. It was found that after the isothermal holding, the deformation behavior of the Ti-6Mo-7Al alloy altered significantly; on the other hand, that of the Ti-4.5Mo-14Al alloy remained almost intact. Transmission electron microscopy observations revealed that the isothermal ω-phase (ωiso) was successfully suppressed in the Ti-4.5Mo-14Al alloy, while the ωiso phase grew in Ti-6Mo-7Al alloy. Moreover, the isothermal α″-phase coexisted in the Ti-4.5Mo-14Al alloy. It is concluded that a high Al concentration is a crucial prerequisite in the practical β-Ti HTSMAs. The presented design could be a useful guideline for developing Ti SMAs with comparable Mo- and Al-equivalents.

    DOI： 10.3390/micro2010007

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  • Achievement of Room Temperature Superelasticity in Ti-Mo-Al Alloy System via Manipulation of ω Phase Stability Reviewed

    Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    Materials   15 ( 3 )   861   2022.1

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：MDPI AG  

    The achievement of room-temperature (RT) superelasticity in a Ti-Mo-Al ternary alloy system through the addition of a relatively high concentration of Al to manipulate the phase stability of the ω phase is realized in this study. The composition of the Ti-6 mol% Mo (Ti-11.34 mass% Mo) alloy was designated as the starting alloy, while 5 mol% Al (=2.71 mass% Al) and 10 mol% Al (=5.54 mass% Al) were introduced to promote their superelastic behavior. Among the alloys, Ti-6 mol% Mo-10 mol% Al alloy, which was investigated for the very first time in this work, performed the best in terms of superelasticity. On the other hand, Ti-6 mol% Mo and Ti-6 mol% Mo-5 mol% Al alloys exhibited a shape memory effect upon heating. It is worth mentioning that in the transmission electron microscopy observation, ω phase, which appeared along with β-parent phase, was significantly suppressed as Al concentration was elevated up to 10 mol%. Therefore, the conventional difficulties of the inhibited RT superelasticity were successfully revealed by regulating the number density of the ω phase below a threshold.

    DOI： 10.3390/ma15030861

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  • Evaluations of mechanical properties and shape memory behaviors of the aging–treated Ti–Au–Mo alloys Reviewed

    Wan-Ting Chiu, Takuya Ishigaki, Naoki Nohira, Akira Umise, Masaki Tahara, Tomonari Inamura, Hideki Hosoda

    Materials Chemistry and Physics   269   124775   2021.9

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.matchemphys.2021.124775

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  • Effects of Cr and Sn additives on the martensitic transformation and deformation behavior of Ti-Cr-Sn biomedical shape memory alloys Reviewed

    Min Soo Park, Wan-Ting Chiu, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    Materials Science and Engineering: A   822   141668   2021.8

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.msea.2021.141668

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  • Influence of the precipitates on the shape memory effect and superelasticity of the near–eutectoid Ti–Au–Fe alloy towards biomaterial applications Reviewed

    Wan-Ting Chiu, Takuya Ishigaki, Naoki Nohira, Akira Umise, Masaki Tahara, Tomonari Inamura, Hideki Hosoda

    Intermetallics   133   107180   2021.6

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.intermet.2021.107180

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  • Effect of Cr additions on the phase constituent, mechanical properties, and shape memory effect of near–eutectoid Ti–4Au towards the biomaterial applications Reviewed

    Wan–Ting Chiu, Takuya Ishigaki, Naoki Nohira, Akira Umise, Masaki Tahara, Tomonari Inamura, Hideki Hosoda

    Journal of Alloys and Compounds   867   159037   2021.6

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jallcom.2021.159037

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  • Effect of 3d transition metal additions on the phase constituent, mechanical properties, and shape memory effect of near–eutectoid Ti–4Au biomedical alloys Reviewed

    Wan-Ting Chiu, Takuya Ishigaki, Naoki Nohira, Akira Umise, Masaki Tahara, Hideki Hosoda

    Journal of Alloys and Compounds   857   157599   2021.3

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jallcom.2020.157599

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MISC

  • Effect of additive elements on strengthening of orthorhombic α″-Ti alloys showing twinning deformation

    Naoki Nohira

    TITANIUM JAPAN   73 ( 4 )   28   2025.10

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    Authorship：Lead author,　Last author,　Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

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  • Domain-informed machine-learning regression of mechanical properties in β-Ti shape memory alloys

    Naoki Nohira, Masaki Tahara, Hideki Hosoda

    Journal of The Japan Institute of Titanium   3 ( 1 )   13 - 18   2025.9

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

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  • Precipitation Formation and Enhancement of Shape Memory and Superelastic Properties in Metastable β-Titanium Alloys Reviewed

    Naoki Nohira, Masaki Tahara, Hideki Hosoda

    Materia Japan   64 ( 9 )   570 - 575   2025.9

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

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  • 生体用形状記憶・超弾性チタン合金開発の最近の展開

    Naoki Nohira, Masaki Tahara, Hideki Hosoda

    KINZOKU MATERIALS SCIENCE & TECHNOLOGY   94 ( 3 )   46 - 55   2024.3

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    Authorship：Lead author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)   Publisher：AGNE GIJUTSU CENTER  

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  • Review of Session "T6 Environmental Applications"

    Hideki Hosoda, Masaki Tahara, Naoki Nohira

    TITANIUM JAPAN   71 ( 4 )   18 - 19   2023.10

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    Language：Japanese   Publishing type：Meeting report  

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  • Review of Session "T5 Biomedical & Healthcare Applications"

    Hideki Hosoda, Masaki Tahara, Naoki Nohira

    TITANIUM JAPAN   71 ( 4 )   16 - 17   2023.10

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    Language：Japanese   Publishing type：Meeting report  

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Presentations

  • Reorientation Behavior of Martensitic Variants and Mechanical Response in Aged Ti–Mo–Al Shape Memory Alloy International conference

    Naoki Nohira, Masaki Tahara, Hideki Hosoda

    International Conference on Martensitic Transformations 2025 (ICOMAT2025)  2025.9 

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    Event date： 2025.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Prague   Country：Czech Republic  

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  • Recent development of titanium–chromium–tin based biomedical shape memory alloys beyond Ni–Ti Invited International conference

    N. Nohira, M. Tahara, H. Hosoda

    Biomaterials International 2025  2025.7 

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    Event date： 2025.7

    Language：English   Presentation type：Oral presentation (invited, special)  

    Venue：Seattle   Country：United States  

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  • 積層造形によって製作した生体用Ti-Cr-Sn超弾性合金の変形挙動

    Naoki Nohira

    大岡山-すずかけ台合同若手研究会  2025.5 

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    Event date： 2025.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • インベストメント鋳造法を利用した生体用形状記憶合金の開発とその機械的性質

    Naoki Nohira

    第33回次世代医工学研究会  2025.1 

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    Event date： 2025.1

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Isothermal ω and α″ Phase Evolution and Mechanical Behavior of Aged Ti–Al–Mo Shape Memory Alloys International conference

    Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024 MRS Fall Meeting & Exhibit  2024.12 

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    Event date： 2024.12

    Language：English   Presentation type：Poster presentation  

    Venue：Boston   Country：United States  

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  • 種々の深層学習モデルを用いたβチタン基形状記憶合金の組織分類

    Naoki Nohira, Taichi Ichisawa, Masaki Tahara, Itsuo Kumazawa, Hideki Hosoda

    2024.11 

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    Event date： 2024.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Effect of Al content on microstrucutre and superelastic properties of metastable β-type Ti-Fe-Al alloys

    Naoki Nohira, Nanahiro Endo, Masaki Tahara, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Effect of annealing temperature on mechanical properties of Ti-Au-Mo alloys International conference

    N. Nohira, W.-T. Chiu, M. Tahara, H. Hosoda

    Biomaterials International 2024  2024.7 

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    Event date： 2024.6 - 2024.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Bangkok   Country：Thailand  

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  • Effects of 3d transition metal substitutions on the phase stability of Ti–6[Mo]eq–10Al alloys

    2024.3 

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    Event date： 2024.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Ti-Mo-Al形状記憶合金のマルテンサイト時効効果

    Naoki Nohiira

    第4回材料機能特性のアーキテクチャー研究会  2023.12 

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    Event date： 2023.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Shape Memory Properties of Martensite Aged Ti–Mo–Al Biomedical Alloy International conference

    Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    The 8th International Symposium on Biomedical Engineering (ISBE2023)  2023.11 

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    Event date： 2023.11

    Language：English   Presentation type：Poster presentation  

    Venue：Hiroshima   Country：Japan  

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  • α″マルテンサイト状態で熱処理を施したTi-4Mo-11Al形状記憶合金の変形挙動

    Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    2023.11 

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    Event date： 2023.11

    Language：Japanese   Presentation type：Oral presentation (general)  

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  • Effect of Al content on the superelastic and mechanical properties of Ti-Mo-Al ternary alloys

    Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Mechanical properties of Ti–Mo–Al shape memory alloy aged at α″ region International conference

    Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    15th World Conference on Titanium (Ti-2023)  2023.6 

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    Event date： 2023.6

    Language：English   Presentation type：Poster presentation  

    Venue：Edinburgh   Country：United Kingdom  

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  • Reorientation behavior of Ti-4Mo-11Al shape memory alloy heat treated in α″ region

    Naoki Nohira, Shuntaro Mori, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2023年春期(第172回)講演大会  2023.3 

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    Event date： 2023.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Deep learning based semantic segmentation techniques for microstructure classification in β titanium biomedical shape memory alloys International conference

    Naoki Nohira, Taichi Ichisawa, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    The 7th International Symposium on Biomedical Engineering (ISBE2022)  2022.11 

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    Event date： 2022.11

    Language：English   Presentation type：Poster presentation  

    Venue：Online  

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  • Effect of alloy composition on isothermal ω phase stability of Ti–Mo–Al shape memory alloys with the same As temperature

    Naoki Nohira, Yoshiaki Oshita, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Microstructural classification by deep learning based semantic segmentation techniques for β Ti based shape memory alloys

    Naoki Nohira, Taichi Ichisawa, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Microstructure and Mechanical properties of Ti-Mo-Al shape memory alloy heat treated at α″ region

    Naoki Nohira, Kenta Hayashi, Masaki Tahara, Hideki Hosoda

    日本金属学会2021年春期(第168回)講演大会  2021.3 

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    Event date： 2021.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：Online   Country：Japan  

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  • マルテンサイト状態で熱処理を施したTi-Mo-Al形状記憶合金の変形と組織

    Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会第3回材料機能特性のアーキテクチャー研究会  2020.12 

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    Event date： 2020.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：Online   Country：Japan  

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  • Effect of heat treatment and testing temperature on deformation behavior of Ti-Mo-Al shape memory alloy

    Naoki Nohira, Kenta Hayashi, Masaki Tahara, Hideki Hosoda

    日本金属学会2020年秋期(第167回)講演大会  2020.9 

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    Event date： 2020.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：Online   Country：Japan  

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  • Effect of heat treatment on deformation behavior of Ti-Mo-Al shape memory alloy

    Naoki Nohira, Kenta Hayashi, Masaki Tahara, Hideki Hosoda

    日本金属学会2020年春期(第166回)講演大会  2020.3 

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    Event date： 2020.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Ti-Mo-Al形状記憶合金の内部組織と機械的性質

    Naoki Nohira, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会第2回材料機能特性のアーキテクチャー研究会  2019.11 

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    Event date： 2019.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Ti-Au共析近傍合金の組織と機械的性質

    Naoki Nohira, Akira Umise, Masaki Tahara, Kenji Goto, Hideki Hosoda

    日本金属学会関東支部第16回ヤングメタラジスト研究交流会  2019.11 

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    Event date： 2019.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of heat treatment on microstructure and shape memory properties of Ti-Mo-Al alloys

    Naoki Nohira, Kenta Hayashi, Keigo Kimura, Masaki Tahara, Hideki Hosoda

    日本金属学会2019年秋期(第165回)講演大会  2019.9 

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    Event date： 2019.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Effect of Aging Treatment on Microstructure and Mechanical Properties of Ti-Au-Mo Biomedical Shape Memory Alloys International conference

    Naoki Nohira, Akira Umise, Masaki Tahara, Kenji Goto, Hideki Hosoda

    The 1st Tokyo Tech-NCTU Joint Symposium on Advanced Materials  2019.9 

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    Event date： 2019.9

    Language：English   Presentation type：Poster presentation  

    Venue：Tokyo   Country：Japan  

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  • 生体用Ti-Au-Mo合金の形状記憶・超弾性特性

    Naoki Nohira, Kenji Goto, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2019年春期(第164回)講演大会  2019.3 

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    Event date： 2019.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Ti-Au-Mo合金の形状記憶特性に及ぼす時効熱処理の影響

    Naoki Nohira, Kenji Goto, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会関東支部第15回ヤングメタラジスト研究交流会  2018.11 

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    Event date： 2018.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of Aging Treatment on Phase Constitution and Mechanical Properties of Ti-Au-Mo Biomedical Shape Memory Alloys International conference

    Naoki Nohira, Kenji Goto, Akira Umise, Masaki Tahara, Hideki Hosoda

    The 3rd International Symposium on Biomedical Engineering  2018.11 

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    Event date： 2018.11

    Language：English   Presentation type：Poster presentation  

    Venue：Hiroshima   Country：Japan  

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  • Microstructure and Mechanical Properties of Near-eutectoid Ti-Au Biomedical Alloys International conference

    Naoki Nohira, Kenji Goto, Akira Umise, Masaki Tahara, Hideki Hosoda

    The 3rd International Symposium on Biomedical Engineering  2018.11 

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    Event date： 2018.11

    Language：English   Presentation type：Poster presentation  

    Venue：Hiroshima   Country：Japan  

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  • Ti-Au-Mo合金の相と機械的性質に及ぼす時効熱処理の影響

    Naoki Nohira, Kenji Goto, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2018年秋期(第163回)講演大会  2018.9 

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    Event date： 2018.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 共析組成近傍Ti-Au基形状記憶合金の相と機械的性質

    Naoki Nohira, Kenji Goto, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会第1回材料機能特性のアーキテクチャー研究会  2018.9 

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    Event date： 2018.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Ti-Au二元系共析組成近傍合金の相と機械的性質に及ぼすAu濃度の影響

    Naoki Nohira, Kenji Goto, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2018年春期(第162回)講演大会  2018.3 

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    Event date： 2018.3

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 共析組成近傍Ti-Au二元系合金の相と機械的性質

    Naoki Nohira, Masaki Tahara, Hideki Hosoda

    第5回グリーンエネルギー材料のマルチスケール創製研究会  2017.12 

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    Event date： 2017.12

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Phase Constitution and Mechanical Properties of Near-eutectoid Ti-Au Biomedical Alloys International conference

    Naoki Nohira, Kenji Goto, Akira Umise, Masaki Tahara, Tomonari Inamura, Hideki Hosoda

    The 2nd International Symposium on Biomedical Engineering  2017.11 

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    Event date： 2017.11

    Language：English   Presentation type：Poster presentation  

    Venue：Tokyo   Country：Japan  

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  • In-situ crystallographic analysis of habit plane in stress-induced martensitic transformation of Ti-Ni alloy single crystals International conference

    Kosei Ono, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    International Conference on Martensitic Transformations 2025 (ICOMAT2025)  2025.9 

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    Event date： 2025.9

    Language：English   Presentation type：Poster presentation  

    Venue：Prague   Country：Czech Republic  

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  • Development and challenges of Ni-free Ti-based biomedical superelastic alloys Invited International conference

    Hideki Hosoda, Masaki Tahara, Naoki Nohira

    International Conference on Martensitic Transformations 2025 (ICOMAT2025)  2025.9 

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    Event date： 2025.9

    Language：English   Presentation type：Oral presentation (invited, special)  

    Venue：Prague   Country：Czech Republic  

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  • Crystallographic analysis of stress-induced martensite in β titanium alloy by combined in-situ measurements International conference

    Masaki Tahara, Naoki Nohira, Hideki Hosoda

    International Conference on Martensitic Transformations 2025 (ICOMAT2025)  2025.9 

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    Event date： 2025.9

    Language：English   Presentation type：Oral presentation (keynote)  

    Venue：Prague   Country：Czech Republic  

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  • Effect of aging on microstructure and mechanical properties of Ag-added Ti-Cr-Sn alloy

    Yutong Jia, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2025年日本金属学会春期講演大会  2025.3 

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    Event date： 2025.3

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

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  • Design of superelastic β-Ti alloys and recent research and development trends

    Masaki Tahara, Naoki Nohira, Hideki Hosoda

    2025年日本金属学会春期講演大会  2025.3 

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    Event date： 2025.3

    Language：Japanese   Presentation type：Oral presentation (keynote)  

    Country：Japan  

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  • Deformation behavior of NiFeCoGa ferromagnetic shape memory alloy single crystals

    Yiming FAN, Naoki Nohira, Volodymyr Chernenko, Masaki Tahara, Hideki Hosoda

    2025年日本金属学会春期講演大会  2025.3 

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    Event date： 2025.3

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

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  • 結晶粒界の高精度抽出のための転移学習手法の構築

    Koichi Ozaki, Naoki Nohira, Masaki Tahara, Ituo Kumazawa, Hideki Hosoda

    2024.11 

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    Event date： 2024.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 準安定β型Ti-Mo系合金におけるα-β変態を利用した形状回復現象

    Masaki Tahara, Naoki Nohira, Hideki Hosoda

    2024.11 

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    Event date： 2024.11

    Language：Japanese   Presentation type：Oral presentation (keynote)  

    Country：Japan  

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  • Ti-Mo系合金の形状回復現象と内部組織に及ぼす熱サイクルの影響

    Ryo Takeo, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024.11 

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    Event date： 2024.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Ti-Ni合金単結晶における応力誘起マルテンサイト変態のIn-situ精密観察

    Kosei Ono, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024.11 

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    Event date： 2024.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • β-Ti合金単結晶における応力誘起マルテンサイト組織の結晶方位依存性

    Kei Izumi, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024.11 

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    Event date： 2024.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Coを添加した生体用Ni-44Ti合金の組織と機械的性質

    Yamato Umetani, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024.10 

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    Event date： 2024.10

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Mechanical Properties and Microstructure Observation of Biomedical Au-Cu-Al Shape Memory Alloys by Introducing Investment Casting Process International conference

    Yecheng LI, Naoki Nohira, Tomonari Inamura, Masato Sone, Masaya Shimabukuro, Masakazu Kawashita, Hiroyasu Kanetaka, Masaki Tahara, Hideki Hosoda

    The 4th International Symposium on Design & Engineering by Joint Inverse Innovation for Materials Architecture (DEJI2MA2024)  2024.10 

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    Event date： 2024.10

    Language：English   Presentation type：Poster presentation  

    Venue：Tokyo  

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  • Automatic generation of imitation images and construction of transfer learning for high-accurate grain-boundary extraction in pure Ti

    Koichi Ozaki, Naoki Nohira, Masaki Tahara, Itsuo Kumazawa, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of thermal cycling on shape recovery phenomenon by α-β transformation in Ti-Mo base alloy

    Ryo Takeo, Akihito Egashira, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Influence of soft magnetic particles on magnetization behaviors of Ni-Mn-Ga particles/polymer composite materials International coauthorship

    Tasuku Fujino, Naoki Nohira, Wan-Ting Chiu, Masaki Tahara, Volodymyr Chernenko, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 3D image analysis of NiMnGa/Fe particle-dispersed resin composites using deep learning International coauthorship

    Sosuke Yasuzawa, Koichi Ozaki, Tasuku Fujino, Naoki Nohira, Wan-Ting Chiu, Masaki Tahara, Itsuo Kumazawa, Hideki Hosoda, Volodymyr Chernenko

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Analysis of microstructure of ice water quenched NiTi/Ni3Ti near-eutectic alloy

    Yusuke Asakura, Yamato Umetani, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • SEM-DIC analysis of reverse martensitic transformation in Ti-Nb-Al shape memory alloy

    Yuto Hiruma, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Crystallographic analysis of stress-induced martensite in Ti-Ni alloy single crystal

    Kosei Ono, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Microstructure characteristics and shape memory properties of Ti-6W-10Al alloy

    Masaya Iwasaki, Hiroyuk Watanabe, Takeshi Teramoto, Akira Umise, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Deformation and transformation behavior of Ti-Cr-Sn superelastic alloys fabricated by L-PBF

    Cheng Chen, Naoki Nohira, Ryosuke Ozasa, Masaki Tahara, Takuya Ishimoto, Yuichiro Koizumi, Takayoshi Nakano, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Crystal orientation dependence of stress-induced martensitic microstructure in single crystals of Ti-Mo-Al alloy

    Kei Izumi, Kosei Ono, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Effect of Co addition on microstructure and mechanical properties of offstoichiometric Ni-44mol%Ti alloys

    Yamato Umetani, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024年日本金属学会秋期講演大会  2024.9 

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    Event date： 2024.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Comparable study on phase stability and mechanical properties of near-eutectoid Ti-Au and Zr-Au alloys for interventional devices International conference

    H. Hosoda, N.Nohira, W.-T. Chiu, M. Tahara

    Biomaterials International 2024  2024.7 

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    Event date： 2024.6 - 2024.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Bangkok   Country：Thailand  

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  • Microstructure and superelastic properties of Ti-Cr-Sn alloys fabricated by L-PBF

    日本金属学会2024年春期(第174回)講演大会  2024.3 

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    Event date： 2024.3

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Stress-induced martensitic transformation behavior of Ti-2.5Cr-8.5Sn alloy single crystal

    2024.3 

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    Event date： 2024.3

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Variant analysis of stress-induced martensite in Ti-Ni alloy single crystal

    日本金属学会2024年春期(第174回)講演大会  2024.3 

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    Event date： 2024.3

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of W concentration on superelastic properties of Ti-Cr-W-Al alloys

    2024.3 

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    Event date： 2024.3

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 固溶限近傍の高Ni組成Ni-Ti合金水冷材の組織と機械的性質

    Hiroki Tanaka, Kai Matsumoto, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    2023.12 

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    Event date： 2023.12

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 生体用β-Ti系形状記憶合金単結晶における応力誘起マルテンサイト変態挙動

    Seiya Miyagawa, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    2023.12 

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    Event date： 2023.12

    Language：Japanese   Presentation type：Poster presentation  

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  • Stress-induced martensitic transformation behavior of Ti-Cr-Sn biomedical superelastic alloy single crystal International conference

    Yilin Jin, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    The 8th International Symposium on Biomedical Engineering (ISBE2023)  2023.11 

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    Event date： 2023.11

    Language：English   Presentation type：Poster presentation  

    Venue：Hiroshima   Country：Japan  

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  • Biomedical Au-Cu-Al Shape Memory Alloys by Introducing Casting Process International conference

    Yecheng Li, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Masato Sone, Hideki Hosoda

    The 8th International Symposium on Biomedical Engineering (ISBE2023)  2023.11 

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    Event date： 2023.11

    Language：English   Presentation type：Poster presentation  

    Venue：Hiroshima   Country：Japan  

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  • Microstructure and mechanical properties of metastable β-type Ti-Cr-Sn alloys fabricated by laser powder bed fusion with pure metal mixed powders International conference

    M. Tahara, Y. Jin, C. Chen, N. Nohira, A. Umise, W.-T. Chiu, R. Ozasa, T. Ishimoto, Y. Koizumi, T. Nakano, H. Hosoda

    Creation of Materials by Super-Thermal Field 2023（CMSTF2023）  2023.11 

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    Event date： 2023.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Osaka   Country：Japan  

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  • β-Ti系形状記憶合金単結晶における応力誘起マルテンサイト変態

    Seiya Miyagawa, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    第20回ヤングメタラジスト研究交流会  2023.11 

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    Event date： 2023.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Ti-Ni 合金単結晶における応力誘起マルテンサイト変態の結晶学的解析

    Kosei Ono, Chihiro Mori, Seiya Miyagawa, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    第20回ヤングメタラジスト研究交流会  2023.11 

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    Event date： 2023.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 準安定β-Ti 合金におけるα-β拡散相変態を用した自発的形状変化

    Akihito Egashira, Kazuto Ando, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    第20回ヤングメタラジスト研究交流会  2023.11 

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    Event date： 2023.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Ni-rich Ni-Ti 合金の組織と機械的性質

    Hiroki Tanaka, Kai Matsumoto, Naoki Nohira, Chiu Wan-Ting, Akira Umise, Masaki Tahara, Hideki Hosoda

    第20回ヤングメタラジスト研究交流会  2023.11 

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    Event date： 2023.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 時効処理を施したTi-Cr-Sn合金の組成分配挙動

    Keiko Widyanisa, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    第20回ヤングメタラジスト研究交流会  2023.11 

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    Event date： 2023.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of heat treatment times on microstructures and mechanical properties of Ni-rich Ni-Ti alloys

    Yamato Umetani, Hiroki Tanaka, Kai Matsumoto, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of low temperature ageing on the mechanical properties of Ti-Cr-Sn superelastic alloys

    Takahiko Igarashi, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Shape recovery phenomenon and two-way shape change using α-β transformation in Ti-Mo-Sn-Al alloy

    Akihito Egashira, Kazuto Ando, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Mechanical Properties and Microstructure Observation of Biomedical Au-Cu-Al Shape Memory Alloys by Introducing Casting Process

    Yecheng Li, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Masato Sone, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of Loading Direction on Crystallographic Features of Stress-Induced Martensite in Ti-Mo-Al Alloy Single Crystal

    Kei Izumi, Seiya Miyagawa, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Crystallographic analysis of stress-induced martensitic transformation in Ti-Ni alloy single crystal by In-situ observation

    Kosei Ono, Chihiro Mori, Seiya Miyagawa, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Microstructure and mechanical properties of Ti-Cr-Sn alloys fabricated by additive manufacturing method

    Masaki TAHARA, Yilin Jin, Cheng Chen, Naoki Nohira, Akira Umise, Wan-Ting Chiu, Ryosuke Ozasa Takuya Ishimoto Yuichiro Koizumi Takayoshi Nakano, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Investigation of shape change behaviors and magnetic properties of the single crystal NiMnGa particles/Cu foil laminate composite

    DongKeun Han, Naoki Nohira, Wan-Ting CHIU, Masaki Tahara, Volodymyr Chernenko, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Microstructure and mechanical properties of aging-treated Ti-Cr-Sn shape memory alloys

    Keiko Widyanisa, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Composition Dependence in Microstructure and Mechanical Properties of Ni-rich Ni-Ti Alloys

    Hiroki Tanaka, Kai Matsumoto, Naoki Nohira, Chiu Wan-Ting, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Electronic structure calculations of AuCuAl alloys by the DV-Xα method

    Akiyoshi Okubo, Naoki Nohira, Wan-ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of Fe and Al Contents on Mechanical Properties of Ti-Fe-Al Shape Memory Alloys

    Nanahiro Endo, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Tahara Masaki, Hideki Hosoda

    日本金属学会2023年秋期(第173回)講演大会  2023.9 

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    Event date： 2023.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Recent achievements of Ti-Cr based shape memory and superelastic alloys International conference

    Hideki Hosoda, Naoki Nohira, Wan-Ting Chiu, Masaki Tahara

    Thermec'2023  2023.7 

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    Event date： 2023.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Vienna   Country：Austria  

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  • Shape recovery phenomenon by diffusional-displacive phase transformation in metastable β-Ti alloy International conference

    Masaki Tahara, Kazuto Ando, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Hideki Hosoda

    15th World Conference on Titanium (Ti-2023)  2023.6 

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    Event date： 2023.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Edinburgh   Country：United Kingdom  

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  • Development and comparable study of Ti-Mo and Ti-Cr based superelastic alloys

    Hideki Hosoda, Naoki Nohira, Minsoo Park, Masaya Iwasaki, Wan-Ting Chiu, Akira Umise, Yasuhiro Kusano, Masaki Tahara

    日本金属学会2023年春期(第172回)講演大会  2023.3 

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    Event date： 2023.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Extraction of grain boundaries in Au-Cu-Al based biomedical shape memory alloys by deep learning based semantic segmentation techniques

    Koichi Ozaki, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Takao Hanawa, Hideki Hosoda

    日本金属学会2023年春期(第172回)講演大会  2023.3 

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    Event date： 2023.3

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Ti-Ni形状記憶合金単結晶の応力誘起マルテンサイト変態挙動

    Chihiro Mori, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会第5回第7分野講演会  2022.12 

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    Event date： 2022.12

    Language：Japanese   Presentation type：Poster presentation  

    Venue：Online  

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  • Design and magnetostrain properties of single crystalline Ni-Mn-Ga microparticles and Cu foils laminated actuator material International conference

    Dongkeun Han, Naoki Nohira, Wan-Ting Chiu, Masaki Tahara, Volodymyr Chernenko, Hideki Hosoda

    The 7th International Symposium on Biomedical Engineering (ISBE2022)  2022.11 

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    Event date： 2022.11

    Language：English   Presentation type：Poster presentation  

    Venue：Online   Country：Japan  

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  • Phase Stability and Mechanical Properties of Ti-5.5Al-11.8[Mo]eq ([Mo]eq = V, Cr, Co and Ni) Biomaterial Alloys International conference

    Widyanisa Keiko, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    The 7th International Symposium on Biomedical Engineering (ISBE2022)  2022.11 

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    Event date： 2022.11

    Language：English   Presentation type：Poster presentation  

    Venue：Online   Country：Japan  

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  • 熱サイクル処理によりマルテンサイト変態温度を安定化したTiNiCu合金のClausius-Clapeyron型関係式に関する実験的考察

    Yusuke Suzumura, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会関東支部第19回ヤングメタラジスト研究交流会  2022.11 

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    Event date： 2022.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Ti-Ni合金単結晶における応力誘起マルテンサイト変態

    Chihiro Mori, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会関東支部第19回ヤングメタラジスト研究交流会  2022.11 

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    Event date： 2022.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 貴金属元素を添加したAu-Cu-Al生体用形状記憶合金の機械的性質

    Tomoki Kurihara, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Masato Sone, Takao Hanawa, Hideki Hosoda

    日本金属学会関東支部第19回ヤングメタラジスト研究交流会  2022.11 

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    Event date： 2022.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of Fe Content on Phase Stability and Mechanical Properties of Ti-Fe-Al Alloys

    Nanahiro Endo, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of β Stabilizing Elements on Phase Stability and Mechanical Properties of Ti-5.5Al-11.8[Mo]eq Alloys

    Keiko Widyanisa, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Stress-induced martensitic transformation behavior of Ti-6Mo-10Al alloy single crystal

    Seiya Miyagawa, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Microstructures and mechanical properties of Ni-Ti alloys near Ni4Ti3

    Hiroki Tanaka, Kai Matsumoto, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Crystallographic analysis of stress-induced martensite in Ti-Ni alloy single crystal

    Chihiro Mori, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Design and magnetostrain properties of single crystalline Ni-Mn-Ga microparticles and Cu foils laminated actuator material

    Dongkeun Han, Naoki Nohira, Wan-Ting Chiu, Masaki Tahara, Volodymyr Chernenko, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • Microstructures and Mechanical Properties of Ni-rich NiTi alloys Near 55mol%Ni

    Kai Matsumoto, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Experimental Study on Clausius-Clapeyron-type Relationship in TiNiCu Shape Memory Alloys

    Yusuke Suzumura, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of Noble Metal Additions on Mechanical Properties of AuCuAl Based Biomedical Shape Memory Alloys

    Tomoki Kurihara, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Masato Sone, Kenji Goto, Takao Hanawa, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Deformation texture in Ti-27mol%Nb alloy single crystal

    Rina Katayama, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Microstructure observation of Ti-Mo-Sn-Al alloy showing shape memory effect by diffusional-displacive phase transformation

    Kazuto Ando, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2022年秋期(第171回)講演大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

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  • 時効熱処理を施したTi-4Mo-11Al合金単結晶のバリアント再配列挙動

    Shuntaro Mori, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会第4回第7分野講演会  2021.12 

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    Event date： 2021.12

    Language：Japanese   Presentation type：Poster presentation  

    Venue：Online   Country：Japan  

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  • Effect of aging treatment on reorientation of self-accommodated structure of Ti-4Mo-11Al shape memory alloy

    Shuntaro Mori, Naoki Nohira, Wan-Ting Chiu, Akira Umise, Masaki Tahara, Hideki Hosoda

    日本金属学会2021年秋期(第169回)講演大会  2021.9 

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    Event date： 2021.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：Online   Country：Japan  

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  • Atomic order dependence of the stability of the stress-induced phases in Au-base martensitic alloy International conference

    Yuki Matsuoka, Mikiko Edamoto, Ayano Toriyabe, Naoki Nohira, Akira Umise, Hideki Hosoda

    Thermec'2021  2021.6 

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    Event date： 2021.6

    Language：English  

    Venue：Online  

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  • Au基およびAg基マルテンサイト合金の不安定化に関する研究

    Yuki Matsuoka, Ayano Toriyabe, Naoki Nohira, Akira Umise, Hideki Hosoda

    令和元年度生体医歯工学共同研究拠点成果報告会  2020.3 

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    Event date： 2020.3

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Effect of heat treatment on mechanical properties of Ti-Mo-Al alloys

    Kenta Hayashi, Naoki Nohira, Keigo Kimura, Masaki Tahara, Hideki Hosoda

    日本金属学会2019年秋期(第165回)講演大会  2019.9 

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    Event date： 2019.9

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Instability of β-phase in Au-based martensitic alloy International conference

    Yuki Matsuoka, Ayano Toriyabe, Naoki Nohira, Masaya Iwasaki, Akira Umise, Hideki Hosoda

    The 3rd International Symposium on Biomedical Engineering  2018.11 

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    Event date： 2018.11

    Language：English   Presentation type：Poster presentation  

    Venue：Hiroshima   Country：Japan  

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  • 金属3D積層造形によって製作したTi-Cr-Sn超弾性合金の変形挙動

    Cheng Chen, Naoki Nohira, Masaki Tahara, Takuya Ishimoto, Yuichiro Koizumi, Takayochi Nakano, Hideki Hosoda

    2024.10 

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    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 深層学習による高精度結晶粒界抽出のための模倣画像を用いた転移学習手法の構築

    Koichi Ozaki, Naoki Nohira, Masaki Tahara, Itsuo kumazawa, Hideki Hosoda

    2024.11 

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    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Ni-Mn-Ga単結晶粒子/軟強磁性体粒子/ポリマー複合材料の磁化挙動評価

    Tasuku Fujino, Naoki Nohira, Wan-Ting Chiu, Masaki Tahara, Volodymyr Chernenko, Hideki Hosoda

    2024.11 

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    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • 種々の温度で時効処理を施した Ti-Cr-Sn超弾性合金の組織と機械的性質

    Takahiko Igarashi, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024.11 

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    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

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  • Ti-Ni合金単結晶における応力誘起マルテンサイト変態の晶癖面解析

    Kosei Ono, Naoki Nohira, Masaki Tahara, Hideki Hosoda

    2024.11 

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    Country：Japan  

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Awards

  • Science Crosspoint Award

    2026.3   Institute of Science Tokyo  

    Naoki Nohira, Masaya Shimabukuro

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    Country：Japan

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  • Young Researcher Presentation Award

    2025.12  

    Naoki Nohira

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    Award type：Award from Japanese society, conference, symposium, etc.  Country：Japan

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  • Best Poster Award

    2024.12   2024 MRS Fall Meeting & Exhibit  

    Naoki Nohira

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    Award type：Award from international society, conference, symposium, etc. 

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  • Seiichi Tejima Doctoral Dissertation Award

    2023.3   Tokyo Institute of Technology  

    Naoki Nohira

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  • Distinguished Paper Award for Young Scientists

    2021.3   日本金属学会 材料機能特性のアーキテクチャー研究会  

    野平 直希

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  • ヤングメタラジスト研究交流会 優秀ポスター賞

    2019.11   日本金属学会 関東支部  

    野平 直希

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  • Young Researchers Poster Award

    2018.11   The 3rd International Symposium on Biomedical Engineering  

    Naoki Nohira

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  • 秋期講演大会 優秀ポスター賞

    2018.9   日本金属学会  

    野平 直希, 後藤 研滋, 海瀨 晃, 田原 正樹, 細田 秀樹

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  • Roberto Rocca Education Program Scholarship

    2018.3   Tenaris  

    Naoki Nohira

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Research Projects

  • Integrated Bulk and Surface Function Design of Zr-Based Biomaterials Combining Superelasticity and Antibacterial Properties

    2026.1 - 2026.8

    Science Tokyo Fund  Science Crosspoint Award 

    Naoki Nohira, Masaya Shimabukuro

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    Authorship：Principal investigator 

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  • Shape Memory and Superelastic Properties of Eutectoid Titanium Alloys

    Grant number：2025-B-113  2025.7 - 2026.6

    Naoki Nohira

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    Authorship：Principal investigator  Grant type：Competitive

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  • 直方晶チタン合金におけるマルテンサイト時効効果と変形挙動の解明

    Grant number：0371116-A  2025.4 - 2026.3

    Naoki Nohira

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    Authorship：Principal investigator 

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  • 形状可変材料における双晶変形の制御手法創成

    Grant number：JPMJAX24DF  2024.10 - 2027.3

    Naoki Nohira

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    Authorship：Principal investigator  Grant type：Competitive

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  • 直方晶チタン形状記憶合金の双晶変形における材料強化

    Grant number：14  2024.10 - 2026.9

    The Japan Institute of Metals and Materials  5th JIMM Frontier Research Grants 

    Naoki Nohira

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  • Effect of additive elements on strengthening of orthorhombic α″ titanium alloys showing twinning deformation

    2024.5 - 2025.3

    The Japan Titanium Society  Titanium Research Grant 

    Naoki Nohira

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    Authorship：Principal investigator 

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  • 直方晶形状記憶チタン合金を用いたドメインエンジニアリングの学理と設計指導原理

    Grant number：24K17493  2024.4 - 2027.3

    Japan Society for the Promotion of Science (JSPS)  Grants-in-Aid for Scientific Research  Grant-in-Aid for Early-Career Scientists

    Naoki Nohira

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    Authorship：Principal investigator 

    Grant amount：\4680000 （ Direct Cost: \3600000 、 Indirect Cost：\1080000 ）

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  • 放射光を用いたナノテクノロジーによる骨接合用形状記憶合金の形状・材質解析 International coauthorship

    Grant number：3055  2024.4 - 2025.3

    Research Center for Biomedical Engineering (RCBE)  Collaboration with Research Center for Biomedical Engineering  Global A

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    Authorship：Coinvestigator(s) 

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  • 界面時効固着の発見が導く第６の材料強化法としての双晶界面制御の提案と強化機構解明

    Grant number：23K19177  2023.8 - 2025.3

    Japan Society for the Promotion of Science (JSPS)  Grants-in-Aid for Scientific Research  Grant-in-Aid for Research Activity Start-up

    Naoki Nohira

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    Authorship：Principal investigator 

    Grant amount：\2860000 （ Direct Cost: \2200000 、 Indirect Cost：\660000 ）

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Teaching Experience

  • Review of Materials and Processing

    2025.4 Institution：Tamagawa University

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    Level：Postgraduate  Country：Japan

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  • Metallic Materials Frontier

    2024.10 Institution：Institute of Science Tokyo

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    Level：Undergraduate (specialized)  Country：Japan

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  • Metallurgical Engineering Laboratory II

    2024.10 Institution：Tokyo Institute of Technology

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    Level：Undergraduate (specialized)  Country：Japan

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  • Metallurgical Engineering Laboratory III

    2024.10 Institution：Tokyo Institute of Technology

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    Level：Undergraduate (specialized)  Country：Japan

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  • Metallurgical Engineering Laboratory I

    2024.4 Institution：Tokyo Institute of Technology

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    Level：Undergraduate (specialized)  Country：Japan

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