東京工業大学 工学部金属工学科 助教授

1993.4 - 1999.3

-:

1992.4 - 1993.3

科学技術庁金属材料技術研究所 研究員

1989.7 - 1992.3

Visiting Researcher, Oak Ridge National Laboratory, USA

1986.4 - 1989.6

5th International Workshop on Titanium Aluminides（IWTA-2016, Tokyo）   5th International Workshop on Titanium Aluminides（IWTA-2016, Tokyo） Organizing Committee  

2015 - 2016.11   

日本鉄鋼協会   学会部門一般表彰選考ＷＧ委員  

2014.4 - 2016.3   

日本鉄鋼協会   日本鉄鋼協会代議員  

2014.4 - 2016.3   

123rd Committee on Heat Resisting Materials and Alloys Japan Scoiety   The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering(123HiMAT-2015) Organizing Committee  

2013.5 - 2015.11   

日本鉄鋼協会   代議員  

2013.4 - 2015.3   

日本鉄鋼協会   講演大会協議会プログラム編成委員会委員  

2012.4 - 2016.3   

日本鉄鋼協会   材料の組織と特性部会運営委員会委員  

2012.4 - 2016.3   

日本金属学会   春期講演大会公募シンポジウム代表世話人  

2012.3 - 2014.3   

日本学術振興会   耐熱金属材料第123委員会 委員長  

2012.1 - 2021.3   

日本鉄鋼協会   鉄鋼材料と合金元素編集委員会応用編分科会主査  

2011.4 - 2015.3   

日本熱処理技術協会   評議員  

2011.4 - 2012.3   

日本鉄鋼協会   合金化溶融めっき鋼板の皮膜特性に及ぼす鋼中Si添加の影響研究会委員  

2010.4 - 2013.3   

日本鉄鋼協会   高温材料のフィジカル・メタラジー研究会幹事  

2008.4 - 2012.3   

日本熱処理技術協会   第17回IFHTSE国際会議実行委員  

2006.9 - 2008.10   

日本金属学会   分科会委員  

2003.4 - 2014.3   

日本熱処理技術協会   評議員  

2003.4 - 2010.5   

日本鉄鋼協会   論文誌編集委員会 専門委員  

2000.4 - 2002.3   

日本鉄鋼協会   析出制御メタラジー研究会委員  

1999.4 - 2003.3   

日本鉄鋼協会   第4回高濃度窒素鋼国際会議 幹事  

1993.10 - 1995.7   

Influence of Input Energy Density on Morphology of Unique Layered Microstructure of £-TiAl Alloys Fabricated by Electron Beam Powder Bed Fusion⁺¹

Ken Cho, Naohide Morita, Hiromasa Matsuoka, Hiroyuki Y. Yasuda, Mitsuharu Todai, Minoru Ueda, Masao Takeyama, Takayoshi Nakano

Materials Transactions   64 ( 1 )   44 - 49   2023

Effect of Scan Speed on Microstructure and Tensile Properties of Ti48Al2Cr2Nb Alloys Fabricated via Additive Manufacturing

Ken Cho, Masahiro Sakata, Hiroyuki Y. Yasuda, Mitsuharu Todai, Minoru Ueda, Masao Takeyama, Takayoshi Nakano

Materials Transactions   64 ( 6 )   1112 - 1118   2023

Electron Beam Melting of TiAl Alloys for Aircraft Jet Engine Application Reviewed

27 ( 12 )   913 - 919   2022.12

“Super-meister Program for Metal Heat Treatments”, an Industry-Academia Collaborative Cultivation Course of Core Human Resources for Manufacturing -Under Education Scheme for Working Adults at Tokyo Tech- Invited Reviewed

5 ( 59 )   727 - 731   2022.11

Grain Boundary Precipitation Control of GCP Phase Using TCP or A2 Phase in Ni-Based Alloys Reviewed

Shuntaro Ida, Ryosuke Yamagata, Hirotoyo Nakashima, Satoru Kobayashi, Masao Takeyama

Metals   12 ( 11 )   1817 - 1817   2022.10

Effects of oxygen addition on the microstructure, phase transformations, and oxidation resistance of TiAl alloys Reviewed

Ali Shaaban, Hirotoyo Nakashima, Mitsutoshi Ueda, Masao Takeyama

Journal of Alloys and Compounds   918   165716 - 165716   2022.10

Quantitative analysis of oxygen in solution in the Ti-Al-O ternary alloys by soft X-ray emission spectroscopy Reviewed

Hirotoyo Nakashima, Arata Kinouchi, Masao Takeyama

Journal of Alloys and Compounds   920   165822 - 165822   2022.6

Influence of input energy density on morphology of unique layered microstructure of γ-TiAl by electron beam powder bed fusionalloys fabricated Reviewed

Ken CHO, Naohide MORITA, Hiromasa MATSUOKA, Hiroyuki Y. YASUDA, Mitsuharu TODAI, Minoru UEDA, Masao TAKEYAMA, Takayoshi NAKANO

JOURNAL OF THE JAPAN INSTITUTE OF LIGHT METALS   72 ( 6 )   298 - 303   2022.6

Effects of Zr Addition on Precipitation and Stability of Fe2Nb Laves and Ni3Nb Phases in Novel Fe–Cr–Ni–Nb Austenitic Heat-resistant Steels Reviewed

Seongtak Oh, Hirotoyo Nakashima, Ryosuke Yamagata, Satoru Kobayashi, Masao Takeyama

ISIJ International   62 ( 6 )   1258 - 1267   2022.2

Peculiar microstructural evolution and tensile properties of β-containing γ-TiAl alloys fabricated by electron beam melting Reviewed

Ken Cho, Hajime Kawabata, Tatsuhiro Hayashi, Hiroyuki Y. Yasuda, Hirotoyo Nakashima, Masao Takeyama, Takayoshi Nakano

Additive Manufacturing   46   102091 - 102091   2021.10

Improving the Tensile Properties of Additively Manufactured β-Containing TiAl Alloys via Microstructure Control Focusing on Cellular Precipitation Reaction Reviewed

Ken Cho, Hirotaka Odo, Keisuke Okamoto, Hiroyuki Y. Yasuda, Hirotoyo Nakashima, Masao Takeyama, Takayoshi Nakano

Crystals   11 ( 7 )   809 - 809   2021.7

The Efect of Microstructure on Steam Oxidation Behavior of the Fe–20Cr–35Ni–2.5Nb (at.%) Steel at 1073 K Reviewed

Mitsutoshi Ueda, ·Jumpei Ohbayashi, Tatsumi Yao, Masao Takeyama

Springer, Oxidation of Metals (2021) ,   96 ( 1-2 )   81 - 91   2021.7

High Precision Manufacturing and Microstructure Control of β-containing γ-TiAl Alloy through Electron Beam Melting Reviewed

Ken CHO, Hajime KAWABATA, Hirotaka ODO, Tatsuhiro HAYASHI, Hiroyuki YASUDA, Masao TAKEYAMA, Takayoshi NAKANO

Journal of Smart Processing   10 ( 4 )   240 - 245   2021.7

Experimental and calculation approach for phase equilibria among γ/TCP/GCP oP6 phases at elevated temperatures Reviewed

R. Nagashima, H. Nakashima, M. Takeyama

MRS Advances (2021)   6 ( 6 )   187 - 194   2021.5

金属間化合物を利用した高温構造材料の状態図に基づいた組織設計指導原理と結晶粒界の役割

竹山雅夫

まてりあ, 日本金属学会会報   60 ( 5 )   281 - 288   2021.5

Effect of interstitial carbon and oxygen in solution on the phase equilibria among β/α2/γ phases in TiAl alloys Reviewed

H. Nakashima, M. Takeyama

MRS Advances (2021)   6 ( 6 )   195 - 197   2021.5

Effects of the addition of transition metals on phase equilibria and phase transformations in TiAl systems in between 1473 and 1073 K Reviewed

A. Shaaban, L.. J. Signori, H. Nakashima, M. Takeyama

Journal of Alloys and Compounds   ( 878 )   2021.5

Effect of Microstructure and Deformation on Hardness Distribution of Wrought Precipitation Strengthened No-Based Alloy after Creep Damage Reviewed

Journal of the Society of Material Science, Japan   70 ( 3 )   258 - 263   2021.3

Surface Microstructure and Its Growth Behavior by Nitrocarburizing with Lithium Added Molten Salt in Fe-0.4mass % C Alloy, Reviewed

Haruna Ishizuka, Youichi Watanabe, Masao Takeyama

MATERIALS TRANSACTION,   62 ( 2 )   290 - 295   2021.1

Nano-indentation modulus and hardness of β-Ti and γ-TiAl phases in Ti–Al–Cr system

Okada, Y., Taniguchi, S., Yamagata, R., Nakashima, H., Takeyama, M.

MRS Advances   6 ( 6 )   183 - 186   2021

A comparative study on the oxidation behaviors of a TNM alloy in argon and oxygen atmospheres at 650℃ Reviewed

Ali Shaaban, Shigenari Hayashi, Masao Takeyama

Corrosion Science 185   185   2021

Creep residual life estimation method based on strain hardening mechanism for precipitation strengthened Ni-based alloy

Shun Oinuma, Reki Takaku, Yujiro Nakatani, Masao Takeyama

Zairyo/Journal of the Society of Materials Science, Japan   69 ( 11 )   817 - 822   2020.11

The Effect of Heat Treatment on Tensile Yielding Response of the New Superalloy ABD-900AM for Additive Manufacturing Reviewed

R. Nagashima, R. Yamagata, H. Nakashima, M. Takeyama

Superalloys 2020. The Minerals, Metals & Materials Series. Springer, Cham. (2020)   1055 - 1065   2020.8

革新的800℃級超耐熱鋼の設計要素技術. Invited Reviewed

竹山雅夫

金属 90, 7 (2020)   90 ( 7 )   550 - 555   2020.7

酸軟窒化処理した熱間工具鋼の摩擦摩耗特性に及ぼす酸化層および窒化層の影響 Reviewed

石塚はる菜, 渡邊陽一, 竹山雅夫

トライボロジスト (2020)   65 ( 7 )   440 - 449   2020.7

リチウム添加塩浴軟窒化によりFe-C-M合金に形成される酸化層および化合物層に及ぼす合金元素の影響 Reviewed

石塚はる菜, 渡邊陽一, 竹山雅夫

熱処理   60 ( 2 )   59 - 66   2020.5

Characterization of Recrystallization and Second-Phase Particles in Solution-Treated Additively Manufactured Alloy 718 Reviewed

Achmad Ariaseta, Satoru Kobayashi, Masao Takeyama, Yuting Wang, Shinya Imano

Springer, Metallurgical and Materials Transactions A,   51A   973 - 981   2020.2

Improvement of High Temperature Fatigue Properties of TiAl Alloys Fabricated by Electron Beam Melting Through Hot Isostatic Pressing Process

Ken CHO, Hiroyuki YASUDA, Mitsuharu TODAI, Minoru UEDA, Masao TAKEYAMA, Takayoshi NAKANO

Journal of Smart Processing   9 ( 4 )   180 - 184   2020

Phase Equilibria Among A1/TCP/GCP Phases and Microstructure Formation in Ni–Cr–Mo System at Elevated Temperatures

Nagashima, R., Yamagata, R., Nakashima, H., Takeyama, M.

Minerals, Metals and Materials Series   2020

電子ビーム積層造形法を用いて造形したTiAl合金の特異な微細組織と力学特性 Invited

趙 研, 安田弘行, 當代光陽, 上田実, 竹山雅夫, 中野貴由

チタン   67 ( 4 )   290 - 296   2019.10

電子ビーム三次元積層造形プロセスにおけるTiAl合金部材の特異な微細組織と力学特性

趙研, 安田弘行, 當代光陽, 上田実, 竹山雅夫, 中野貴由

チタン   60 ( 4 )   50 - 56   2019.10

Influence of Unique Layered Microstructure on Mechanical Properties of TiAl-Based Alloys Prepared by Electron Beam Melting Reviewed

K. Cho, M. Sakata, J.Y. Oh, H.Y. Yasuda, M. Todai, A. Ikeda, M. Ueda, M. Takeyama, T. Nakano

Proceedings from EPRI’s 9th International Conference on Advances in Materials Technology for Fossil Power Plants and the 2nd International 123HiMAT Conference on High-Temperature Materials   2019.10

Effects of water vapor and nitrogen on oxidation of TNM alloy at 650 °C

Ali Shaaban, Shigenari Hayashi, M. Takeyama

Corrosion Science   158   2019.9

析出強化型鍛造Ni基超合金のクリープ劣化損傷機構および硬さ法によるクリープ損傷評価 Reviewed

生沼駿, 高久歴, 中谷祐二郎, 竹山雅夫

材料,   68 ( 9 )   673 - 679   2019.9

リチウム添加した溶融塩を用いて軟窒化処理したFe-0.4mass%C合金の表層組織と成長挙動 Reviewed

石塚はる菜, 渡邊陽一, 竹山雅夫

熱処理,   59 ( 4 )   215 - 221   2019.9

800℃級発電プラント用鉄系材料の実現に向けた組織設計原理 Invited Reviewed

竹山雅夫

ふぇらむ 日本鉄鋼協会会報, Vol.24,No.8, 505-509, (2019)   24 ( 8 )   505 - 50   2019.8

Phase Equilibria Among γ/TCP/GCP Phases in Nb-Poor Region of Ni-Nb-Co Ternary System at Elevated Temperatures Reviewed

Shuntaro Ida, Ryosuke Yamagata, Hirotoyo Nakashima, Satoru Kobayashi, Masao Takeyama

40 ( 4 )   570 - 582   2019.7

Additive ManufacturingプロセスによるTiAl金属間化合物の組織制御と力学特性 Invited Reviewed

安田弘行, 趙研, 當代光陽, 上田実, 近藤大介, 唐土庄太郎, 池田亜矢子, 竹山雅夫, 中野貴由

スマートプロセス学会誌   2019.5

Design Approaches and Achievements of Novel Wrought TiAl Alloys for Jet Engine Applications Reviewed

H. Wakabayashi, L. J. Signori, A. Shaaban, R. Yamagata, H. Nakashima, M. Takeyama

MRS Advances, 2019 Materials Research Society,   4 ( 25-26 )   1465 - 1470   2019.5

Microstructure Design for Enhancement of Room-temperature Ductility in Multi-component TiAl Alloys Reviewed

Ryosuke Yamagata, Yotaro Okada, Hideki Wakabayashi, Hirotoyo Nakashima, Masao Takeyama

MRS Advances   4 ( 25-26 )   1523 - 1529   2019.5

Phase Equilibria Among β/α/α2/γ Phases and Phase Transformations in Ti-Al-Cr System at Elevated Temperatures Reviewed

Ali Shaaban, Hideki Wakabayashi, Hirotoyo Nakashima, Masao Takeyama

MRS Advances, 2019 Materials Research Society,   4 ( 25-26 )   1471 - 1476   2019.5

Creep degradation mechanism and creep damage assessment based on hardness method of precipitation strengthened wrought Ni-based superalloy

Shun Oinuma, Reki Takaku, Yujiro Nakatani, Masao Takeyama

Zairyo/Journal of the Society of Materials Science, Japan   68 ( 9 )   673 - 679   2019

Grain boundary precipitation behavior of δ-Ni3Nb (D0a) phase in a Ni-Nb-Fe ternary model alloy Reviewed

Shuntaro Ida, Satoru Kobayashi, Masao Takeyama

Elsevier, Journal of Alloys and Compounds   ( 764 )   1033 - 1038   2018.10

Fatigue crack growth behavior of wrought γ-based TiAl alloy containing β-phase Reviewed

Loris J. Signoria, Taiki Nakamura, Yotaro Okada, Ryosuke Yamagata, Hirotoyo Nakashima, Masao Takeyama

Elsevier, Intermetallics   100   77 - 87   2018.9

耐熱材料における新規設計指導原理の構築-粒界析出制御- Invited Reviewed

竹山雅夫

ふぇらむ，   23 ( 8 )   28 - 33   2018.8

鉄鋼材料における組織制御の基礎 Invited Reviewed

竹山雅夫

第８５回伸線技術分科会研究集会講演集   2018.5

Effect of homogenization on creep of additive manufactured alloy 718 Reviewed

Tomoki Otsuka, Hideki Wakabayashi, Daisuke Igarashi, Achmad Ariaseta, Shiny A. Imano, Yuting Wang, Satoru Kobayashi, Masao Takeyama

Minerals, Metals and Materials Series   2018-June   501 - 513   2018

Influence of unique layered microstructure on fatigue properties of Ti-48Al-2Cr-2Nb alloys fabricated by electron beam melting Reviewed

Cho, K., Kobayashi, R., Oh, J.Y., Yasuda, H.Y., Todai, M., Nakano, T., Ikeda, A., Ueda, M., Takeyama, M.

Intermetallics   95   1 - 10   2018

Microstructure and Fatigue Properties of TiAl with Unique Layered Microstructure Fabricated by Electron Beam Melting Reviewed

Cho Ken, Kobayashi Ryota, Fukuoka Takuma, Oh Jong Yeong, Yasuda Hiroyuki Y, Todai Mitsuharu, Nakano Takayoshi, Ikeda Ayako, Ueda Minoru, Takeyama Masao

THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS   941   1597 - 1602   2018

Effects of Heat Treatment on Unique Layered Microstructure and Tensile Properties of Tial Fabricated by Electron Beam Melting Reviewed

Sakata Masahiro, Oh Jong Yeong, Cho Ken, Yasuda Hiroyuki Y, Todai Mitsuharu, Nakano Takayoshi, Ikeda Ayako, Ueda Minoru, Takeyama Masao

THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS   941   1366 - 1371   2018

Morphology evolution of γ′precipitates during isothermal exposure in wrought Ni-based superalloy Inconel X-750 Reviewed

Hiromu Hisazawa, Yoshihiro Terada, Masao Takeyama

MATERIALS TRANSACTIONS   58 ( 5 )   817 - 824   2017.5

耐熱金属材料の最近の動向と今後の展望 Invited Reviewed

竹山雅夫

まてりあ 日本金属学会会報,   56 ( 3 )   145 - 150   2017.3

Effect of building direction on the microstructure and tensile properties of Ti-48Al-2Cr-2Nb alloy additively manufactured by electron beam melting Reviewed

Todai Mitsuharu, Nakano Takayoshi, Liu Tianqi, Yasuda Hiroyuki Y, Hagihara Koji, Cho Ken, Ueda Minoru, Takeyama Masao

ADDITIVE MANUFACTURING   13   61 - 70   2017.1

Solidification of Bcc/T-1/T-2 three-phase microstructure in Mo-Nb-Si-B alloys Reviewed

N. Takata, N. Sekido, M. Takeyama, J. H. Perepezko, M. Follett-Figueroa, C. Zhang

INTERMETALLICS   72   1 - 8   2016.5

Effect of Pretreatment by Ammonium Sulfate on Galvannealing Time of Si-Bearing Galvanized Steel Reviewed

Yoichi Tobiyama, Masahiko Tada, Sakae Fujita, Shigenari Hayashi, Masao Takeyama

JOURNAL OF THE JAPAN INSTITUTE OF METALS   80 ( 2 )   121 - 127   2016.2

Effect of Phosphorus on Age-hardening Behavior of Austenitic Heat Resisting Steels Reviewed

Katsuhiko Ohishi, Toshihiro Uehara, Masao Takeyama

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   102 ( 7 )   389 - 395   2016

Crystallography of Fe2Al5 phase at the interface between solid Fe and liquid Al Reviewed

Naoki Takata, Manamu Nishimoto, Satoru Kobayashi, Masao Takeyama

INTERMETALLICS   67   1 - 11   2015.12

Crystallography of Bcc/T<inf>1</inf>/T<inf>2</inf> three-phase microstructure in the directionally solidified Mo-Nb-Si-B alloy

Naoki Takata, Nobuaki Sekido, Masao Takeyama, John H. Perepezko

Materials Research Society Symposium Proceedings   1760   133 - 138   2015

Improvement of Galvanizability of Si-Bearing Steel by Accelerated Oxidation Prior to Annealing in Galvanizing Reviewed

Yoichi Tobiyama, Masahiko Tada, Sakae Fujita, Masao Takeyama

JOURNAL OF THE JAPAN INSTITUTE OF METALS   79 ( 5 )   249 - 256   2015

Current State and Recent Trend of Wrought TiAl Alloys

TAKEYAMA Masao, NAKASHIMA Hirotoyo

Journal of the JSTP   56 ( 654 )   535 - 539   2015

Growth of Fe2Al5 Phase on Pure Iron Hot-Dipped in Al-Mg-Si Alloy Melt with Fe in Solution Reviewed

Naoki Takata, Manamu Nishimoto, Satoru Kobayashi, Masao Takeyama

ISIJ INTERNATIONAL   55 ( 7 )   1454 - 1459   2015

Effect of Iron Sulfide on Oxidation of Si. Bearing Steel Prior to Reducing Anneal during Galvanizing Process Reviewed

Yoichi Tobiyama, Masahiko Tada, Sakae Fujita, Masao Takeyama

JOURNAL OF THE JAPAN INSTITUTE OF METALS   78 ( 12 )   441 - 448   2014.12

Morphology and formation of Fe-Al intermetallic layers on iron hot-dipped in Al-Mg-Si alloy melt Reviewed

Naoki Takata, Manamu Nishimoto, Satoru Kobayashi, Masao Takeyama

INTERMETALLICS   54   136 - 142   2014.11

Creep of the novel austenitic heat resistant steel of Fe-20Cr-30Ni-2Nb under steam atmosphere at 1073 K

Yu Misosaku, Imanuel Tarigan, Naoki Takata, Mitsutoshi Ueda, Toshio Maruyama, Masao Takeyama

Advances in Materials Technology for Fossil Power Plants - Proceedings from the 7th International Conference   1352 - 1362   2014

Steam oxidation of the novel austenitic steel of FE-20CR-30NI-2NB (AT.%) AT 973 K

Mitsutoshi Ueda, Masakazu Yamashita, Kenichi Kawamura, Masao Takeyama, Toshio Maruyama

Advances in Materials Technology for Fossil Power Plants - Proceedings from the 7th International Conference   815 - 820   2014

Effect of Steel Microstructure on Solid Fe/Liquid Zn Interface Reaction in Hot-dipped Zn Galvanized Steels Reviewed

Naoki Takata, Masao Takeyama

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   100 ( 9 )   1172 - 1179   2014

Effect of Grain Boundary Fe2Nb Laves Phase on Creep of Austenitic Heat Resistant Steel of Fe-20Cr-30Ni-2Nb in Steam Atmosphere Reviewed

Yu Misosaku, Imanuel Tarigan, Takahiro Kimura, Naoki Takata, Mitsutoshi Ueda, Toshio Maruyama, Masao Takeyama

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   100 ( 9 )   1158 - 1164   2014

The Effect of Water Vapor on the Transition from Internal to External Oxidation of Austenitic Steels at 1,073 K Reviewed

Mitsutoshi Ueda, Yuki Inoue, Hikotaro Ochiai, Masao Takeyama, Toshio Maruyama

OXIDATION OF METALS   79 ( 5-6 )   485 - 494   2013.6

Microstructure Development of Oxide Scale during Steam Oxidation of the Fe-20Cr-30Ni-2Nb (at%) Austenitic Steel at 1073 K Reviewed

Lyta, Mitsutoshi Ueda, Kenichi Kawamura, Masao Takeyama, Toshio Maruyama

MATERIALS TRANSACTIONS   54 ( 12 )   2276 - 2284   2013

The Effect of Molybdenum on the Phase Transformation Behavior of beta/gamma-TiAl alloys Reviewed

Svea Mayer, Christian Sailer, Thomas Schmoelzer, Janny Lindemann, Thomas Lippmann, Masao Takeyama, Peter Staron, Helmut Clemens

TI-2011: PROCEEDINGS OF THE 12TH WORLD CONFERENCE ON TITANIUM, VOL II   1421 - 1424   2012

Microtension behaviour of TiAl polysynthetically twinned crystals with 0 degrees- and 90 degrees-oriented lamellae

Yoji Mine, Hidetoshi Fujisaki, Mitsuhiro Matsuda, Masao Takeyama, Kazuki Takashima

SCRIPTA MATERIALIA   65 ( 8 )   707 - 710   2011.10

Phase Equilibria among gamma-Fe/Fe2Nb(TCP)/Ni3Nb(GCP) Phases in Fe-Ni-Nb Ternary System at Elevated Temperatures Reviewed

Yusaku Hasebe, Kiyoshi Hashimoto, Masao Takeyama

JOURNAL OF THE JAPAN INSTITUTE OF METALS   75 ( 4 )   265 - 273   2011.4

Novel concept of creep strengthening mechanism using grain boundary Fe2Nb Laves phase in austenitic heat resistant steel Reviewed

Imanuel Tarigan, Keiichi Kurata, Naoki Takata, Takashi Matsuo, Masao Takeyama

Materials Research Society Symposium Proceedings   1295   317 - 322   2011

Phase equilibria and phase transformations in molybdenum-containing TiAl alloys

Svea Mayer, Christian Sailer, Hirotoyo Nakashima, Thomas Schmoelzer, Thomas Lippmann, Peter Staron, Klaus-Dieter Liss, Helmut Clemens, Masao Takeyama

Materials Research Society Symposium Proceedings   1295   113 - 118   2011

Current trend and prospect on wrought gamma TiAl alloys: the philosophy of microstructure design Invited Reviewed

Bulletin of the Iron and Steel Institute of Japan   15 ( 11 )   678 - 685   2010.11

Formation and growth of intermetallic layers in hot dip aluminized iron

Satoru Kobayashi, Manamu Nishimoto, Naoki Takata, Masao Takeyama

Proceedings of the 17th IFHTSE Congress   1   237 - 240   2009

Site Occupation and Defect Structure of Fe(2)Nb Laves Phase in Fe-Nb-M Ternary Systems at Elevated Temperatures Reviewed

Shigehiro Ishikawa, Takashi Matsuo, Naoki Takata, Masao Takeyama

ADVANCED INTERMETALLIC-BASED ALLOYS FOR EXTREME ENVIRONMENT AND ENERGY APPLICATIONS   1128   463 - 468   2009

Physical and Mechanical Properties of Single Crystals of Co-Al-W Based Alloys with L1(2) Single-Phase and L1(2)/fcc Two-Phase Microstructures Reviewed

Inui, H, Tanaka, K, Kishida, K, Okamoto, NL, Oohashi, T, Palm, M, Bewlay, BP, He, YH, Takeyama, M, Wiezorek, JMK

Advanced Intermetallic-Based Alloys For Extreme Environment and Energy Applications   1128   369 - 374   2009

Influence of Elastic Properties on the Morphology of the gamma' Precipitates in Ni-Base Superalloys Reviewed

Hashimoto, W, Tanaka, K, Kishida, K, Okamoto, NL, Inui, H, Palm, M, Bewlay, BP, He, YH, Takeyama, M, Wiezorek, JMK

Advanced Intermetallic-Based Alloys For Extreme Environment and Energy Applications   1128   227 - 232   2009

Processing, Microstructure, and Thermal Expansion Measurements of High Temperature Ru-Al-Cr B2 Alloys Reviewed

Hashimoto, Y, Okamoto, NL, Acosta, M, Johnson, DR, Inui, H, Palm, M, Bewlay, BP, He, YH, Takeyama, M, Wiezorek, JMK

Advanced Intermetallic-Based Alloys For Extreme Environment and Energy Applications   1128   215 - 220   2009

Plastic Deformation Behavior of Ti(5)Si(3) Single Crystals Reviewed

Kishida, K, Fujiwara, M, Okamoto, NL, Tanaka, K, Inui, H, Palm, M, Bewlay, BP, He, YH, Takeyama, M, Wiezorek, JMK

Advanced Intermetallic-Based Alloys For Extreme Environment and Energy Applications   1128   537 - 542   2009

Mechanical and Thermal Properties of Single Crystals of Some Thermoelectric Clathrate Compounds Reviewed

Okamoto, NL, Nakano, T, Kishida, K, Tanaka, K, Inui, H, Palm, M, Bewlay, BP, He, YH, Takeyama, M, Wiezorek, JMK

Advanced Intermetallic-Based Alloys For Extreme Environment and Energy Applications   1128   27 - 32   2009

Microscale Fracture Toughness Testing of TiAl PST Crystals Reviewed

Daisuke Miyaguchi, Masaaki Otsu, Kazuki Takashima, Masao Takeyama

ADVANCED INTERMETALLIC-BASED ALLOYS FOR EXTREME ENVIRONMENT AND ENERGY APPLICATIONS   1128   197 - +   2009

Crystal Structure and Thermoelectric Properties of Mn-Substituted Ru(2)Si(3) With the Chimney-Ladder Structure Reviewed

Koyama, T, Okamoto, NL, Kishida, K, Tanaka, K, Inui, H, Palm, M, Bewlay, BP, He, YH, Takeyama, M, Wiezorek, JMK

Advanced Intermetallic-Based Alloys For Extreme Environment and Energy Applications   1128   173 - 178   2009

Change in the Thermoelectric Properties With the Variation in the Defect Structure of ReSi(1.75) Reviewed

Harada, S, Tanaka, K, Kishida, K, Okamoto, NL, Inui, H, Palm, M, Bewlay, BP, He, YH, Takeyama, M, Wiezorek, JMK

Advanced Intermetallic-Based Alloys For Extreme Environment and Energy Applications   1128   9 - 14   2009

Solubility and site occupation of transition metal M in Fe2Nb laves phase at elevated temperatures

Shigehiro Ishikawa, Masakazu Yamashita, Takashi Matsuo, Naoki Takata, Masao Takeyama

Proceedings of the 17th IFHTSE Congress   2   486 - 489   2008

Phase equilibria between gamma-Fe (A1) and Fe2Ti Laves (C14) phases and microstructure in Fe-Ti-Ni ternary system at elevated temperatures Reviewed

Tomoaki Sugiura, Shigehiro Ishikawa, Takashi Matsuo, Masao Takeyarna

PRICM 6: SIXTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-3   561-565   435 - 438   2007

Crystal structures and thermoelectric properties of Rul(1-x)Re(x)Si(y) chimney-ladder compounds Reviewed

Ishida, A, Okamoto, NL, Kishida, K, Tanaka, K, Inui, H, Wiezorek, J, Fu, CL, Takeyama, M, Morris, D, Clemens, H

Advanced Intermetallic-Based Alloys   980   235 - 240   2007

Change in creep deformation of PST crystals with different stress axes Reviewed

Xiaohua Min, Eisaku Sakurada, Masao Takeyama, Takashi Matsuo

ADVANCED INTERMETALLIC-BASED ALLOYS   980   419 - +   2007

Novel concept of austenitic heat resistant steels strengthened by intermetallics Reviewed

Masao Takeyama

THERMEC 2006, Pts 1-5   539-543   3012 - 3017   2007

Phase equilibria among alpha-Fe, gamma-Fe and Fe2MO phases and stability of the laves phase in Fe-Mo-Ni ternary system at elevated temperatures Reviewed

Shigehirc Ishikawa, Takashi Matsuo, Masao Takeyama

Advanced Intermetallic-Based Alloys   980   517 - 522   2007

On the influence of nb on the transition temperatures of titanium aluminides Reviewed

Harald F. Chladil, Helmut Clemens, Masao Takeyama, Ernst Kozeschnik, Arno Bartels, Rainer Gerling, Sascha Kremmer

ADVANCED INTERMETALLIC-BASED ALLOYS   980   371 - +   2007

Physical metallurgy for wrought gamma titanium aluminides microstructure control through phase transformations Reviewed

M Takeyama, S Kobayashi

INTERMETALLICS   13 ( 9 )   993 - 999   2005.9

Crystallographic considerations for lamellar orientation control of Ti-48AlPST crystal Reviewed

Y Yamamoto, M Nagaki, M Takeyama, T Matsuo

GAMMA TITANIUM ALUMINIDES 2003   121 - 126   2003

Larnellar orientation control of Ti-48AlPST crystal by unidirectional solidification Reviewed

M Takeyama, Y Yamamoto, H Morishima, K Koike, SY Chang, T Matsuo

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING   329   7 - 12   2002.6

STRENGTHENING MECHANISMS OF NI-CR-W BASED SUPERALLOYS FOR VERY HIGH-TEMPERATURE GAS-COOLED REACTORS Reviewed

T MATSUO, M KIKUCHI, M TAKEYAMA

HEAT RESISTANT MATERIALS   601 - 614   1991

EFFECT OF SOLUTE ELEMENTS ON DISLOCATION SUBSTRUCTURES DEVELOPED DURING HIGH-TEMPERATURE CREEP IN HIGH CHROMIUM HIGH NICKEL STEEL Reviewed

Y KONDO, T INAZUMI, M TAKEYAMA, T MATSUO, R TANAKA

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   76 ( 2 )   246 - 253   1990.2

EFFECT OF CARBON ON HIGH-TEMPERATURE CREEP PROPERTY OF A NI-20CR ALLOY Reviewed

J ZHANG, M TAKEYAMA, T MATSUO, M KIKUCHI, R TANAKA

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   73 ( 1 )   183 - 190   1987.1

EFFECT OF GRAIN-BOUNDARY PRECIPITATES ON HIGH-TEMPERATURE CREEP-PROPERTIES OF NI-20CR-NB-W ALLOYS Reviewed

M TAKEYAMA, K KAWASAKI, T MATSUO, R TANAKA

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   72 ( 10 )   1605 - 1612   1986.8

EFFECTS OF B AND ZR ON HIGH-TEMPERATURE CREEP-PROPERTIES OF A NI-20CR ALLOY Reviewed

M TAKEYAMA, T MIURA, T MATSUO, M KIKUCHI, R TANAKA

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   72 ( 9 )   1359 - 1366   1986.7

鍛造TiAl基合金の現状と展望 ― その組織設計哲学 ―

竹山雅夫（ Role： Sole authorふぇらむ，Vol. 15 (11), pp. 678-685）

日本鉄鋼協会  2010.11 

Advanced intermetallic-based alloys for extreme environment and energy applications : symposium held December 1-4, 2008, Boston, Massachusetts, U.S.A.

Palm, Martin, Bewlay, Bernard P., He, Yue- Hui, Takeyama, Masao, Wiezorek, Jörg M. K., Materials Research Society. Meeting

Materials Research Society  2009  （ ISBN:9781605111001 ）

耐熱材料の材料科学−微細組織制御−

竹山雅夫（ Role： Contributor第194，195回西山記念技術講座「CO2削減にむけた耐熱鋼の最近の進展」）

日本鉄鋼協会  2008.5 

Crystallographic Considerations for Lamellar Orientation Control of Ti-48Al PST Crystal

Gamma Titanium Aluminide, TMS  2003 

Microstructure Evolution and Strengthening Mechnism of Wrought Ni-41Cr-7Al Alloy

Advanced Materials and Processes for Gas Turbines, TMS  2003 

Microstructure Evolution and Strengthening Mechnism of Wrought Ni-41Cr-7Al Alloy

Advanced Materials and Processes for Gas Turbines, TMS  2003 

Effect of Nb on Lamellar Orientation Control of Single Crystal Gamma TiAl Alloys with Fully Lamellar Microstructure

Niobium for High Temperature Applications, TMS  2003 

Effect of Nb on Lamellar Orientation Control of Single Crystal Gamma TiAl Alloys with Fully Lamellar Microstructure

Niobium for High Temperature Applications, TMS  2003 

Crystallographic Considerations for Lamellar Orientation Control of Ti-48Al PST Crystal

Gamma Titanium Aluminide, TMS  2003 

Multi-variant Structure of Ni_3_V Transformed from A1(fcc) to D0_22_(bct)

Practical Electron Microscopy and Its Application to Materials  2002 

Materials Science and Engineering An Introduction

2002 

材料の科学と工学 [1]材料の微細構造 （分担）

培風館  2002 

材料の科学と工学 [2]金属材料の力学的性質 （分担）

培風館  2002 

Materials Science and Engineering

2002 

A1(fcc)→D0_22_(bct)変態により生成したNi_3_VのMulti-variant組織

電子顕微鏡法の実践と応用写真集  2002 

材料の科学と工学 [4]材料の構造・製法・設計 （分担）

培風館  2002 

金属の組織と状態図 －金属材料の結晶構造，状態図と相変態

日本熱処理技術協会  2002 

Materials Science and Engineering An Introduction

2001 

鋼の状態図と熱処理理論

熱処理大学  2000 

金属材料活用事典

産業調査会  1999 

金属の基礎「平成11年度 熱処理技術セミナー 熱処理応用講座〔その1〕」

日本熱処理技術協会  1999 

An Encyclopedia of Metallic Material

1999 

金属材料活用事典 -金属合金の種類（鉄鋼）-（分担）

産業調査会  1999 

材料科学への招待「新しい視点に立って」

入戸野 修（ Role： Joint author分担：第14章 ジェットエンジン用超合金をのぞく）

培風館  1997.5 

ti-Rich TiAl 合金におけるα-γマッツブ変態の反応過程

1995 

TiAl金属間化合物基合金の固相間の相変態を利用した組織形成

1995 

Reaction Process of α-γ Massive Transformation in Ti-Rich TiAl Alloy

Mat.Res.Soc.Symp  1995 

Reaction Process of α→γ Massive Transformation in Ti-rich TiAl Alloy

Materials Research Society  1995 

Reaction Process of α→γ Massive Transformation in Ti-rich TiAl Alloy

Materials Research Society  1995 

Microstructure Evolution Through Solid-Solid Phase Transformations in Gamma titanium Aluminides

Gamma Titanium Aluminides  1995 

Cooling Rate Dependence of the α/γ Phase Transformation in Titamium Aluminides and Its Application to Alloy Development

Structural Intermetallics, TMS  1993 

Cooling Rate Dependence of the α/γ Phase Transformation in Titamium Aluminides and Its Application to Alloy Development

Structural Intermetallics, TMS  1993 

Ta添加によるLaves相強化型オーステナイト系超耐熱鋼のクリープと粒界析出相の役割

三屋悠大, Seongtak Oh, 若林英輝, 中島広豊, 竹山雅夫

日本学術振興会第123委員会研究報告   63 ( 1 )   1 - 12   2022.3

Cu を添加した TiAl 基合金の相平衡

中島 広豊, Yu Jianhui, 西村 友宏, 宮村 剛夫, 竹山 雅夫

日本金属学会 2022 年春期（第 170 回）講演大会「まてりあ」Vol.61 No.3 付録   31   2022.3

Ni-Cr-W三元系のMo添加に伴う1273Kにおける相平衡

福田理佳子, 竹山雅夫, 中島広豊

材料とプロセス : 日本鉄鋼協会講演論文集   35 ( 1 )   57 - 57   2022.3

Cu,Nb 添加 TiAl 鍛造合金の材料組織と機械特性

宮村 剛夫, 西村 友宏, 石田 斉, 中島 広豊, 竹山 雅夫

日本金属学会 2022 年春期（第 170 回）講演大会概要集_「まてりあ」Vol.61 No.3 付録   61 ( 3 )   31   2022.3

Ni-Cr-Mo三元系における NiCrMo-P(TCP)相を利用した組織制御

永島涼太, 竹山雅夫

材料とプロセス : 日本鉄鋼協会講演論文集   35 ( 1 )   246 - 246   2022.3

Ti-Al-Nb三元系合金の相平衡に及ぼす酸素の影響

渡邊海香, 中島広豊, 竹山雅夫

材料とプロセス : 日本鉄鋼協会講演論文集   35 ( 1 )   62 - 62   2022.3

TiAl基合金の高温疲労き裂進展特性に及ぼす雰囲気の影響

磯村龍一, 中島広豊, 竹山雅夫

材料とプロセス : 日本鉄鋼協会講演論文集   35 ( 1 )   36 - 36   2022.3

第一原理計算を援用した Ti-Al-O 三元系状態図の計算

中島 広豊, 樫本 貴之, 合田 義弘, 竹山 雅夫

日本金属学会 2022 年春期（第 170 回）講演大会「まてりあ」Vol.61 No.3 付録   31   2022.3

電子ビーム粉末床溶融結合法により作製した β 相含有 TiAl合金におけるセル状析出反応を利用した組織制御による力学特性向上

趙 研, 岡本 慶介, 安田 弘行, 竹山 雅夫, 中野 貴由

日本金属学会 2022 年春期（第 170 回）講演大会「まてりあ」Vol.61 No.3 付録   31   2022.3

第一原理電子論に基づく Ti-Al 基合金における相平衡の評価

樫本 貴之, 中島 広豊, 竹山 雅夫, 合田 義弘

日本金属学会 2022 年春期（第 170 回）講演大会「まてりあ」Vol.61 No.3 付録   31   2022.3

鍛造TiAl基合金の疲労き裂進展特性に及ぼすラメラ組織形態の影響 Reviewed

山形 遼介, 花田 晃広, 中島 広豊, 竹山 雅夫

日本金属学会第169回講演大会 講演概要集   41   2021.9

Fe-20Cr-35Ni-2.5Nb (at.%) 鋼の水蒸気酸化挙動に 及ぼす析出強化相の影響 Reviewed

上田 光敏, 大林 純平, 矢尾 達海, 竹山 雅夫

日本金属学会2021 年秋期講演（第 169 回）大会概要集   102   2021.8

TiAl基合金におけるβ-Ti, α2 -Ti3Al, γ-TiAl各相のヤン グ率および硬さに及ぼす固溶酸素の影響 Reviewed

岡田 陽太郎, 山形 遼介, 中島 広豊, 竹山 雅夫

日本金属学会2021 年秋期講演（第 169 回）大会概要集   51   2021.8

電子ビーム粉末床溶融結合法により作製したβ相含有 TiAl合金の微細組織および力学特性に及ぼす Al量の影 響 Reviewed

松岡 弘剛, 趙 研, 安田 弘行, 竹山 雅夫, 中野 貴由

日本金属学会2021 年秋期講演（第 169 回）大会概要集   50   2021.8

Ti-Al-Ni三元系の高温における相平衡

YU JIANHUI, 中島 広豊, 竹山 雅夫

日本金属学会2021 年秋期講演（第 169 回）大会概要集   48   2021.8

金属粉末射出成形法によるβ相含有γ-TiAl合金の組織お よび機械的性質 Reviewed

蘇武 信太郎, 吉田 里香子, 新藤 健太郎, 福島 明, 花見和樹, 中島 広豊, 山形 遼介, 竹山 雅夫

日本金属学会2021 年秋期講演（第 169 回）大会概要集   43   2021.8

電子ビーム粉末床溶融結合法で作製したβ相含有 TiAl 合金の組織制御による力学特性向上 Reviewed

岡本 慶介, 趙 研, 安田 弘行, 竹山 雅夫, 中野 貴由

日本金属学会2021 年秋期講演（第 169 回）大会概要集   47   2021.8

電子ビーム粉末床溶融結合法により作製したβ相含有 TiAl合金の微細組織および力学特性の造形方向依存性 Reviewed

趙 研, 尾堂 裕隆, 安田 弘行, 竹山 雅夫, 中野 貴由

日本金属学会2021 年秋期講演（第 169 回）大会概要集   46   2021.8

Ni-Cr-Mo三元系におけるγ/TCP/oP6三相間の相平衡の計算による再現 Reviewed

永島涼太, 中島広豊, 竹山雅夫, 橋本清

材料とプロセス 第 182 回秋季講演大会   34 ( 2 )   423   2021.8

Ti-Al-Nb三元系合金の相平衡に及ぼす固溶酸素の影響 Reviewed

中島 広豊, 竹山 雅夫

日本金属学会第169回講演大会 講演概要集   49   2021.8

Ta置換によるLaves相強化型オーステナイト系超耐熱鋼のクリープ強化 Reviewed

三屋悠大, 若林英輝, 中島広豊, 小林覚, 竹山雅夫

材料とプロセス 第 182 回秋季講演大会   34 ( 2 )   97   2021.8

Stability of Fe2Nb Laves and Ni3Nb phases in Zr containing novel austenitic heat resistant steels Reviewed

Seongtak. Oh, Hirotoyo Nakashima, Satoru Kobayashi, Masao Takeyama

34 ( 2 )   96   2021.8

α2/γ ラメラ粒と γ 粒を組織構成要素とする TiAl 基合金のク リープ Reviewed

木野 雄路, 山形 遼介, 中島 広豊, 竹山 雅夫

日本金属学会2021 年秋期講演（第 169 回）大会概要集   42   2021.8

Fe-20Cr-35Ni-2.5Nb (at.%) 鋼の高温水蒸気酸化挙動に及ぼすWおよびTiの影響

上田光敏, 大林純平, 矢尾達海, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   62 ( 2 )   185 - 190   2021.6

Fe-Cr 二元系σ相（tP30）の結晶構造に及ぼす固溶Al, Siの影響

前田英太郎, 永島涼太, 中島広豊, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   62 ( 1 )   1 - 8   2021.3

Ni基合金におけるNi3M（M: Ti, Nb）相の析出形態に及ぼす合金元素の効果

岡本真幸, 小林 覚, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   62 ( 1 )   61 - 71   2021.3

Ti-Al-Cr三元系における平衡β-Ti/γ-TiAl相のナノインデンテーション法による機械的特性評価

岡田陽太郎, 山形遼介, 中島広豊, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   62 ( 1 )   87 - 92   2021.3

TiAl二元系におけるα2-Ti3Al/γ-TiAlラメラ組織のナノインデンテーション法による機械的特性評価

谷口宗大, 岡田陽太郎, 山形遼介, 中島広豊, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   62 ( 1 )   73 - 86   2021.3

γ"析出強化型Ni 基合金のクリープ速度に及ぼす組織安定性の効果

福元皓介, 小林 覚, 竹山雅夫, 佐藤 順

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   62 ( 1 )   51 - 59   2021.3

TiAl基合金の疲労き裂進展特性に及ぼす組織の影響

花田晃広, 山形遼介, 中島広豊, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   62 ( 1 )   93 - 103   2021.3

Ni-Cr-Mo 三元系における TCP P (oP56) 相の粒界析出挙動

永島涼太, 中島広豊, 竹山雅夫

材料とプロセス 第 181回春季講演大会   134   2021.2

γ-TiAl 基合金の室温破壊靱性に及ぼす固溶酸素の影響 Reviewed

山形 遼介, 岡田 陽太郎, 中島 広豊, 竹山 雅夫

日本金属学会2021 年春期（第 168 回）講演大会概要集   214   2021.2

電子ビーム積層造形法による β 相含有 γ-TiAl 合金の微細組 織および力学特性制御 Reviewed

趙 研, 川端 はじめ, 林 竜弘, 安田 弘行, 竹山 雅夫, 中野 貴由

日本金属学会2021 年春期（第 168 回）講演大会概要集   213   2021.2

Ti-Al-Cr三元系におけるβ/α/α2/γ相間の相平衡に及ぼす固溶 炭素の影響 Reviewed

中島 広豊, 木許 雄太, 竹山 雅夫

日本金属学会2021 年春期（第 168 回）講演大会概要集   215   2021.2

Improvement of strength of β-containing γ-TiAl alloys through formation of unique microstructure using electron beam melting

林竜弘, 趙研, 安田弘行, 竹山雅夫, 中野貴由

軽金属学会大会講演概要   140th   2021

Improvement of High Temperature Fatigue Properties of TiAl Alloys Fabricated by Electron Beam Powder Bed Fusion through Hot Isostatic Pressing Process

趙研, 安田弘行, 趙研, 安田弘行, 當代光陽, 上田実, 竹山雅夫, 中野貴由, 中野貴由

スマートプロセス学会学術講演会講演概要   2021   2021

Effect of Microstructure Factor on Room-Temperature Fracture Toughness of β-Ti Phase Containing γ-TiAl Based Alloys Reviewed

Ryosuke Yamagata, Hirotoyo Nakashima, Masao Takeyama

2020 MRS Virtual Spring/Fall Meeting, November 27-December 4, 2020, Fall Abstracts Final Program   2020.11

Evaluation of Mechanical Properties for Constituent Phases by Nano-indentation Method in γ-TiAl Alloys Reviewed

Sota Taniguchi, Yotaro Okada, Ryosuke Yamagata, Hirotoyo Nakashima, Masao Takeyama

2020 MRS Virtual Spring/Fall Meeting, November 27-December 4, 2020, Fall Abstracts Final Program   2020.11

Experimental and Calculation Approach for Phase Equilibria Among γ/TCP/GCP oP6 Phases at Elevated Temperatures Reviewed

Ryota Nagashima, Hirotoyo Nakashima, Masao Takeyama

2020 MRS Virtual Spring/Fall Meeting, November 27-December 4, 2020, Fall Abstracts Final Program   2020.11

Current Activities on Powder Processed TiAl Alloys for Jet Engine Applications in Japan Reviewed

Masao Takeyama

2020 MRS Virtual Spring/Fall Meeting, November 27-December 4, 2020, Fall Abstracts Final Program   2020.11

Effect of Si in Solution on the Crystal Structure of σ Phase (tP30) in Fe-Cr Binary Alloys Reviewed

Eitaro Maeda, Masao Takeyama

2020 MRS Virtual Spring/Fall Meeting, November 27-December 4, 2020, Fall Abstracts Final Program   2020.11

Nano-indentation Modulus and Hardness of β-Ti/α2-Ti3Al/γ-TiAl in Ti-Al-Cr System Reviewed

Yotaro Okada, Sota Taniguchi, Ryosuke Yamagata, Hirotoyo Nakashima, Masao Takeyama

2020 MRS Virtual Spring/Fall Meeting, Fall Abstracts Final Program   2020.11

Effect of Interstitial Carbon and Oxygen in Solution on the Phase Equilibria Among β/α/α2/γ Phases in TiAl Alloys Reviewed

Hirotoyo Nakashima, Masao Takeyama

2020 MRS Virtual Spring/Fall Meeting, November 27-December 4, 2020, Fall Abstracts Final Program   2020.11

Ni 基合金におけるη-Ni3Ti 相の析出挙動に及ぼす合金元素の効果

岡本真幸, 鷺谷亨輔, 小林覚, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   61 ( 1 )   85 - 94   2020.10

Lave相強化型オーステナイト系耐熱鋼の組織およびクリープ特性に及ぼすTaの影響

劉 詩博, 若林英輝, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   61 ( 1 )   1 - 9   2020.3

TiAl基合金のβ/α(α2)/γ相間の相平衡に及ぼす炭素および酸素の影響

木許雄太, 中島広豊, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   61 ( 1 )   127 - 136   2020.3

β -Ti 相を用いて粒界組織を制御したTiAl 基合金のクリープ特性

池村郁哉, 若林英輝, 山形遼介, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   61 ( 1 )   117 - 126   2020.3

侵入型元素を含むTiAl基三元系合金の計算状態図

中島広豊, 木許雄太, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   61 ( 1 )   137 - 141   2020.3

Microstructure formation via eutectoid-type reaction of δ-Fe→γ-Fe+Fe2Ta in Fe-Cr-Ta ternary alloys,

Zhetao Yuan, Satoru Kobayashi, Masao Takeyama

61 ( 1 )   19 - 26   2020.3

炭素無添加のLaves 相強化型Fe-Cr-Ni-Nb オーステナイト系耐熱鋼のTTP図の計算による構築

菊池健太, 中島広豊, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   61 ( 1 )   11 - 18   2020.3

γ’’ 強化型Ni 基合金における組織形成に及ぼす合金元素の効果

鷺谷亨輔, 小林覚, 竹山雅夫, 佐藤純, 伊達正芳

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   61 ( 1 )   75 - 84   2020.3

フェライト系耐熱鋼の低熱膨張化－フェライト相の熱膨張に及ぼす合金元素の効果－

福西勇人, 小林覚, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   61 ( 1 )   27 - 34   2020.3

Effect of Alloying Elements on Surface Oxide/Nitride Layers in Steel Reviewed

Haruna Ishizuka, Youichi Watanabe, MASAO TAKEYAMA

The Program for the MISE 2020 conference   2020.2

Microstructure Effect on Enhancement of Room-Temperature Ductility in β-Ti Containing γ-TiAl Based Alloys Reviewed

Ryosuke Yamagata, Yotaro Okada, Hirotoyo Nakashima, Masao Takeyama

Proceedings of Joint EPRI - 123HiMAT International Conference   60 ( 3 )   1446 - 1456   2019.10

Novel Microstructure Design Approach Using TCP and GCP in Ni-Cr-MTernary Systems Based on Phase Diagram Study at Elevated Temperature Reviewed

R. Nagashima, R. Yamagata, H. Nakashima, S. Kobayashi, M. Takeyama

Proceedings of Joint EPRI ? 123HiMAT International Conference.   60 ( 3 )   1436 - 1445   2019.10

Effect of Widmanstatten-Type α2-Ti3Al Plates on Creep in γ-TiAl Based Alloy Reviewed

Fumiya Ikemura, Hideki Wakabayashi, Ryosuke Yamagata, Hirotoyo Nakashima, Masao Takeyama

Proceedings of Joint EPRI- 123HiMAT International Conference.   60 ( 3 )   1429 - 1435   2019.10

Precipitation Kinetics of TCP (Fe2Nb) and GCP (Ni3Nb) Phases in Fe-Cr-Ni-Nb Austenitic Heat-Resistant Steels with Partial Replacement of Nb with Ta Reviewed

Seongtak Oh, Hirotoyo Nakashima, Satoru Kobayashi, Masao Takeyama

Proceedings of Joint EPRI- 123HiMAT International Conference.   60 ( 3 )   1418 - 1428   2019.10

Effects of γ-TiAl/γ Lamellar Interfaces and Grain-Boundary α2-Ti3Al Phase on Creep of TiAl Based All Reviewed

Hideki Wakabayashi, Ryosuke Yamagata, Hirotoyo Nakashima, Masao Takeyama

Proceedings of Joint EPRI- 123HiMAT International Conference   60 ( 3 )   1395 - 1401   2019.10

Microstructure Control Using the Formation of Laves Phase throughInterphase Precipitation in Ferritic Heat Resistant Steels Reviewed

Z.T. Yuan, S. Kobayashi, M. Takeyama

Proceedings of Joint EPRI- 123HiMAT International Conference.   60 ( 3 )   90 - 95   2019.10

Competitive Effect of Nb and V on High-Temperature Oxidation of α2-Ti-30Al Alloys Reviewed

Domingo Jullian, Shigenari Hayashi, Masao Takeyama

Proceedings of Joint EPRI- 123HiMAT International Conference.   60 ( 3 )   971 - 975   2019.10

Creep Life Assessment of γ′ Precipitation Strengthened Ni-Based Superalloys for High Efficient Turbine Components Reviewed

Shun Oinuma, Reki Takaku, Yujiro Nakatani, Masao Takeyama

Proceedings of Joint EPRI- 123HiMAT International Conference   60 ( 3 )   1305 - 1313   2019.10

Grain Boundary Design Using Precipitation of Delta-Ni3Nb Phase for Ni-Based Wrought Alloys Reviewed

Satoru Kobayashi, T. Otsuka, M. Takeyama, Chuya Aoki, Tomonori Ueno

Proceedings of Joint EPRI- 123HiMAT International Conference.   60 ( 3 )   391 - 397   2019.10

Effect of Si and Cr Additions on Surface Oxide/Nitride Layers in a Fe-0.4 wt.% C by Novel Salt-Bath Nitrocarburizing Treatment Reviewed

Haruna Ishizuka, M. Takeyama, Youichi Watanabe

Proceedings of Joint EPRI- 123HiMAT International Conference.   60 ( 3 )   924 - 929   2019.10

Effect of Carbon in Solution on Phase Equilibria among β/α(α2)/γ Phases in TiAl Alloys Using Soft X-Ray Emission Spectroscopy Reviewed

Yuta Kimoto, Hirotoyo Nakashima, Masao Takeyama

Proceedings of Joint EPRI- 123HiMAT International Conference   60 ( 3 )   1402 - 1407   2019.10

Experimental and Computational Study on Grain Boundary and Grain Interior Precipitation of Fe2Nb Laves Phase in Fe-Cr-Ni-Nb Austenitic Heat Resistant Steels Reviewed

Kenta Kikuchi, Hirotoyo Nakashima, Masao Takeyama

Proceedings of Joint EPRI- 123HiMAT International Conference.   60 ( 3 )   1408 - 1417   2019.10

Deformation Behavior of Advanced γ-TiAl Based Alloys by In-Situ SEM Observation and Digital Image Correlation Technique Reviewed

Yotaro Okada, Ryosuke Yamagata, Hirotoyo Nakashima, Masao Takeyama

Proceedings of Joint EPRI- 123HiMAT International Conference   60 ( 3 )   1380 - 1388   2019.10

Design approaches and achievements of novel TiAl alloys for jet engine applications under SIP programs in Japan Reviewed

Masao Takeyama

Program and Abstracts Intermetallics 2019,Kern GmbH,p.   74 - 75   2019.9

Phase equilibrium among γ-Ni/TCP/GCP oP6 phases in Ni-based alloys at elevated temperature Reviewed

Ryota Nagashima, Ryosuke Yamagata, Hirotoyo Nakashima, Masao Takeyama

Program and Abstracts Intermetallics 2019,Kern GmbH   140 - 141   2019.9

Analysis of local deformation behavior in TiAl based alloys under tensile loading by digital image correlation Reviewed

Yotaro Okada, Ryosuke Yamagata, Hirotoyo Nakashima, Masao Takeyama

Program and Abstracts Intermetallics 2019. Kern GmbH   162 - 163   2019.9

Effect of Nb and V additions on oxidation behavior of α2-Ti-30at%Al alloys Reviewed

Shigenari Hayashi, Domingo Jullian, Masao Takeyama

Program and Abstracts Intermetallics 2019.,Kern GmbH   62 - 63   2019.9

Phase diagram study on the Ti-Al-M-O quaternary systems using soft X-ray emission spectroscopy, Reviewed

Hirotoyo Nakashima, Yuta Kimoto, Masao Takeyama

Program and Abstracts Intermetallics 2019,Kern GmbH   92 - 93   2019.9

Design Approaches and Properties of Novel Wrought TiAl Alloys for Jet Engine Applications Invited Reviewed

Masao Takeyama

The 10th Pacific Rim International Conference on Advanced Materials and Processing, The Chinese Society for Metals (CSM)   7   2019.7

耐熱鋼および耐熱合金の高温クリープにおける粒界の役割と粒界析出制御 Invited Reviewed

竹山雅夫

第237・238回西山記念技術講座「先進エネルギーマネージメントの 発展を支える耐熱鋼開発」   53 - 75   2019.5

β-Ti安定化元素を複合添加した四元系TiAl基合金の実験および計算状態図

中島広豊, Ali Shaaban, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   60 ( 1 )   123 - 130   2019.3

TiAl基合金のクリープに及ぼす粒界β-Ti相の影響

若林英輝, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   60 ( 1 )   151 - 161   2019.3

γ’’ 強化型Ni基合金におけるδ-Ni3Nb相の析出に及ぼす合金元素の効果

大塚智樹, 小林覚, 竹山雅夫, 青木宙也, 上野友典

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   60 ( 1 )   69 - 78   2019.3

Ti-Al-Cr 3元系におけるβ+α→α2+γ→β+γ相変態を利用した組織制御

村田健太, 若林英輝, Ali Shaaban, 山形遼介, 中島広豊, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   60 ( 1 )   131 - 140   2019.3

鍛造TiAl基合金の室温延性に及ぼす組織因子の影響

山形遼介, 岡田陽太郎, 若林英輝, 中島広豊, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   60 ( 1 )   141 - 149   2019.3

Ni-Cr-Mo 3元系におけるA1 / TCP / GCP Ni2(Cr,Mo)相の相平衡

永島涼太, 山形遼介, 中島広豊, 小林覚, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   60 ( 1 )   85 - 95   2019.3

電子ビーム三次元積層造形を用いた特異バンド状組織制御によるTiAl合金の高延性化

趙研, 坂田将啓, 安田弘行, 當代光陽, 上田実, 竹山雅夫, 中野貴由

日本金属学会講演大会(Web)   165th   2019

電子ビーム三次元積層造形法で作製したTiAl合金造形体の形状が微細組織に与える影響

川端はじめ, 趙研, 安田弘行, 當代光陽, 上田実, 竹山雅夫, 中野貴由

日本金属学会講演大会(Web)   165th   2019

電子ビーム三次元積層造形法で作製したTiAl合金の室温疲労特性向上

尾堂裕隆, 趙研, 安田弘行, 當代光陽, 上田実, 竹山雅夫, 中野貴由

日本金属学会講演大会(Web)   165th   2019

電子ビーム三次元積層造形法で作製したTiAl合金における特異バンド状組織と疲労特性の関係

趙研, 福岡拓馬, 尾堂裕隆, 安田弘行, 當代光陽, 池田亜矢子, 近藤大介, 唐土庄太郎, 上田実, 竹山雅夫, 中野貴由

日本金属学会講演概要(CD-ROM)   164th   2019

電子ビーム三次元積層造形法で作製したTiAl合金造形体の形状が微細組織および力学特性に与える影響

川端はじめ, 趙研, 安田弘行, 當代光陽, 上田実, 竹山雅夫, 中野貴由

軽金属学会大会講演概要   137th   2019

電子ビーム三次元積層造形法で作製したTiAl合金の組織と力学特性

安田弘行, 趙研, 中野由, 當代光陽, 上田実, 近藤大介, 唐土庄太郎, 池田亜矢子, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 3 )   523 - 530   2018.11

TiAl基合金の引張変形下におけるDIC法による局所ひずみの定量化

岡田陽太郎, 山形遼介, 中島広豊, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 3 )   515 - 522   2018.11

In Situ SEM Observation and Measurement of Strain Localization During Tensile in γ-TiAl Based Alloys Reviewed

Yotaro Okada, Loris J. Signori, Ryosuke Yamagata, Hirotoyo Nakashima, Masao Takeyama

2018 MRS Fall Meeting & Exhibit, Program & Abstracts MRS,   1716   2018.10

Computational and Experimental Phase Diagram Study in Ti-Al-Nb-Cr Quaternary System Reviewed

Hirotoyo Nakashima, Masao Takeyama

2018 MRS Fall Meeting & Exhibit Program & Abstracts pdf, MRS   1711   2018.10

Effect of Si and Cr on Surface Microstructure Formed by Lithium doped Salt-bath Nitrocarburizing in Fe-0.4wt%C Reviewed

Haruna Ishizuka, Youichi Watanabe, Masao Takeyama

25th IFHTSE Congress,   584   2018.9

β安定化元素を添加したTi-Al-M 3元系におけるβ-Ti/ α-Ti/ γ-TiAl相間の酸素の分配挙動

中島広豊, 木内新, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 2 )   315 - 322   2018.7

γ’-Ni3(Al, Ti) 強化型Ni基超合金の硬さに及ぼす単純および応力時効の影響

生沼駿, 高久歴, 中谷祐二郎, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 2 )   273 - 283   2018.7

1073 KにおけるFe-Cr-Ni-Nb合金の水蒸気酸化挙動に及ぼすW添加の影響

上田光敏, 大林純平, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 2 )   331 - 336   2018.7

Physical Metallurgy of Grain-boundary Precipitation Control in High-temperature Metallic/Intermetallic Materials Invited

Masao Takeyama

64. Metallkunde-Kolloquium PROGRAM, Werkstoffforschung Montanuniversität Leoben   6   2018.3

金属間化合物強化型オーステナイト系耐熱鋼の弾性的性質に及ぼす組織の影響

定井優樹, 山形遼介, 小林覚, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 1 )   23 - 32   2018.3

Ni-Nb-Co３元系におけるA1 (fcc)/TCP/GCP３相間の相平衡

井田駿太郎, 山形遼介, 中島広豊, 小林覚, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 1 )   103 - 116   2018.3

FeCr-σ相（tP30）の遷移金属元素の固溶による格子定数変化

丸山蒼太, 小林覚, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 1 )   13 - 22   2018.3

軟X線分光法による酸素の定量分析に基づくTiAl基合金の相平衡に及ぼす酸素の効果

木内新, 中島広豊, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 1 )   177 - 186   2018.3

Fe-Cr-Ti 3元フェライト系合金におけるFe2Ti Laves相の粒界析出挙動

大木優太朗, 小林覚, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 1 )   1 - 12   2018.3

インコネル718三次元積層造形材のクリープに及ぼす溶体化処理の影響

大塚智樹, 若林英輝, 五十嵐大輔, AriasetaAchmad, 今野晋也, 王玉艇, 小林覚, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 1 )   129 - 142   2018.3

Ni基鍛造合金”Nimonic263”におけるクリープ挙動に及ぼす粒界析出物の影響（第2報）

小林覚, 齊藤大蔵, 吉岡洋明, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   59 ( 1 )   171 - 176   2018.3

電子ビーム三次元積層造形法で作製したTiAl合金における特異バンド状組織の形態制御と力学特性向上

趙研, 坂田将啓, 安田弘行, 中野貴由, 當代光陽, 池田亜矢子, 近藤大介, 唐土庄太郎, 上田実, 竹山雅夫

日本金属学会講演概要(CD-ROM)   163rd   2018

電子ビーム三次元積層造形法で作製したTiAl合金の特異バンド状組織制御による室温延性の向上

坂田将啓, 趙研, 安田弘行, 當代光陽, 中野貴由, 池田亜矢子, 近藤大介, 長町悠斗, 上田実, 竹山雅夫

日本金属学会講演概要(CD-ROM)   162nd   2018

電子ビーム三次元積層造形法で作製したTiAl合金における室温延性向上に向けた微細組織の最適化

趙研, 森田尚秀, 安田弘行, 當代光陽, 中野貴由, 池田亜矢子, 近藤大介, 長町悠斗, 上田実, 竹山雅夫

日本金属学会講演概要(CD-ROM)   162nd   2018

電子ビーム三次元積層造形法におけるTiAl合金造形体の形状と微細組織の関係

川端はじめ, 趙研, 安田弘行, 中野貴由, 當代光陽, 池田亜矢子, 近藤大介, 唐土庄太郎, 上田実, 竹山雅夫

日本金属学会講演概要(CD-ROM)   163rd   2018

伝熱解析による電子ビーム三次元積層造形法を用いて作製したTiAl合金の組織予測

池田亜矢子, 趙研, 安田弘行, 中野貴由, 當代光陽, 近藤大介, 長町悠斗, 上田実, 竹山雅夫

日本金属学会講演概要(CD-ROM)   162nd   2018

電子ビーム三次元積層造形法で作製したTiAl合金の組織制御と高温疲労特性改善

福岡拓馬, 趙研, 安田弘行, 中野貴由, 當代光陽, 池田亜矢子, 近藤大介, 唐土庄太郎, 上田実, 竹山雅夫

日本金属学会講演概要(CD-ROM)   163rd   2018

Nature of Sigma Phase (tP30) and its Applicability for Novel Heat-Resistant Steels Reviewed

Souta Maruyama, Satoru Kobayashi, Masao Takeyama

The Sixth International Education Forum on Environment and Energy Science, Session Program   2   2017.12

耐熱金属材料第123委員会の60年の歴史を振り返って

竹山雅夫

耐熱金属材料第123委員会設立60周年記念シンポジウム特別号,   58 ( 3 )   225 - 236   2017.11

Precipitation Behavior of Fe2Ti Laves Phase at Ferrite Grain Boundaries

Yutaro OKI, Satoru KOBAYASHI, Masao TAKEYAMA

58 ( 3 )   381 - 382   2017.11

Effect of Zr on the Precipitation Kinetics of Fe2Nb (TCP) and Ni3Nb (GCP) in Novel Fe-Cr-Ni-Nb Austenitic Heat Resistant Steels

Seongtak OH, Hongmei LI, Fagang GAO, Hirotoyo NAKASHIMA, Satoru KOBAYASHI, Masao TAKEYAMA

58 ( 3 )   365 - 366   2017.11

Enhancement of Phase Formation by Strain in Fe-Cr System at 973 K

Souta MARUYAMA, Hirotoyo NAKASHIMA, Satoru KOBAYASHI, Masao TAKEYAMA

58 ( 3 )   373-374   2017.11

Creep behaviors of high Cr heat resistant ferritic steels with different distribution/morphology of laves phase particles Reviewed

Satoru Kobayashi, Masao Takeyama, Kazuhiro Kimura

PRELIMINARY PROGRAM ECCC Creep & Fracture 2017, European Creep Collaborative Committee   5   2017.9

Grain Boundary Precipitation Behavior of Fe2Ti-Laves Phase in Fe-Cr-Ti Ternary Ferritic Alloy Reviewed

Yutaro Oki, Satoru Kobayashi, Masao Takeyama

Program and Abstracts Intermetallics 2017 International Conference, Karlsruher Institut for Technologie   209 - 210   2017.9

Effect on Al and Cr substitution on TCP structure of Fe2Nb Laves phase Reviewed

Ryosuke YAMAGATA, Masao TAKEYAMA, Kyosuke YOSHIMI

Program and Abstract Intermetallics 2017 International Conference, Karlsruher Institut for Technologies   87 - 88   2017.9

Effect of microstructure containing β-Ti phase on crack propagation behavior of wrought γ-TiAl based alloys Reviewed

Loris Signori, Taiki Nakamura, Yotaro Okada, Hirotoyo Nakashima, Masao Takeyama

Intermetallics 2017 International Conference, Karlsruher Institut for Tech., Karlsruher Institut for Technologies,   169 - 170   2017.9

電子ビーム三次元積層造形法で作製したTiAl合金の熱間等方圧加圧処理による微細組織制御と疲労特性改善

趙研, 小林良太, 安田弘行, 當代光陽, 中野貴由, 池田亜矢子, 近藤大介, 長町悠斗, 上田実, 竹山雅夫

日本金属学会講演概要(CD-ROM)   160th   2017

電子ビーム三次元積層造形法で作製したTiAl合金の微細組織と引張特性に及ぼす熱処理の影響

坂田将啓, 趙研, 安田弘行, 中野貴由, 當代光陽, 池田亜矢子, 近藤大介, 長町悠斗, 上田実, 竹山雅夫

日本金属学会講演概要(CD-ROM)   161st   2017

電子ビーム三次元積層造形法で作製したTiAl合金におけるバンド状γ等軸粒が室温延性に及ぼす影響

森田尚秀, 趙研, 安田弘行, 中野貴由, 當代光陽, 池田亜矢子, 近藤大介, 長町悠斗, 上田実, 竹山雅夫

日本金属学会講演概要(CD-ROM)   161st   2017

電子ビーム三次元積層造形法で作製したTiAl合金の微細組織と力学特性に及ぼす熱処理の影響

森田尚秀, 趙研, 安田弘行, 當代光陽, 中野貴由, 池田亜矢子, 近藤大介, 長町悠斗, 上田実, 竹山雅夫

日本金属学会講演概要(CD-ROM)   160th   2017

Effect of Dynamic Phase Transformation on Creep Resistance in TiAl Based Alloys at 1073K Reviewed

Hideki Wakabayashi, Hirotoyo Nakashima, Shigenari Hayashi, Masao Takeyama

2016 MRS FALL MEETING & EXHIBIT Program   241   2016.11

Nb Supersaturation for Grain Boundary Precipitation of Fe2 Nb Laves Phase under γ/Fe2Nb/Ni3Nb Three-Phase Equilibrium in Fe-Cr-Ni-Nb Austenitic Heat Resistant Steels Reviewed

Fagang Gao, Satoru Kobayashi, Masao Takeyama

2016 MRS FALL MEETING & EXHIBIT PROGRAM   243   2016.11

Effect of Stoichiometry on Crystal Structure of Sigma Phase (tP30) in Fe-Cr Binary Alloy Reviewed

Souta Maruyama, Satoru Kobayashi, Masao Takeyama

2016 MRS FALL MEETING & EXHIBIT PROGRAM   242   2016.11

Microstructural Control and Creep Behaviors of High Cr Heat Resistant Ferritic Steels Strengthened with Fine Dispersion of Laves Phase Reviewed

Satoru Kobayashi, Masao Takeyama

2016 MRS FALL MEETING & EXHIBIT PROGRAM   260   2016.11

Design Approaches Based on Phase Diagrams for Innovative High-Temperature Structual Materials Using Intermetallics Phases, Reviewed

Masao Takeyama

2016 MRS FALL MEETING & EXHIBIT PROGRAM & EXHIBIT GUIDE   241   2016.11

Phase Equilibria among β, α(α2) and γ Phases in Carbon Doped TiAl Alloys Using Ultra Soft-X-Ray Emission Spectroscopy Reviewed

Rikako Yoshida, Masao Takeyama

2016 MRS FALL MEETING & EXHIBIT Program   241   2016.11

Effect of Microstructure on Fatigue Crack Properties in Wrought TiAl Alloy Reviewed

Keiji KUBUSHIRO, Satoshi TAKAHASHI, Masao TAKEYAMA

5th International Workshop on Titanium Aluminides Program and Abstracts   5-02   2016.8

Applicability of TiAl Forging Alloy for Steam Turbine Blades, Reviewed

Shinji Oikawa, Jun SATO, Shinya IMANO, Akira YOSHINARI, Takeshi IZUMI, Shigenari HAYASHI, Ali SHAABAN, M. Takeyama

5th International Workshop on Titanium Aluminides Program and Abstracts   P-04   2016.8

Tempering of Martensite Formed by → Phase Transformation in -TiAl Based AlloysContaining a  Stabilizing Element Reviewed

Satoru KOBAYASHI, M. Takeyama

5th International Workshop on Titanium Aluminides Program and Abstracts   P-01   2016.8

Phase Equilibria among β-Ti/α2-Ti3Al/γ-TiAl Phases in Ti-Al-M Ternary Systems at 1273 K Reviewed

L. Signori, H. Nakashima, M. Takeyama

5th International Workshop on Titanium Aluminides IWTA2016-Tokyo Program and Abstracts,   P-06   2016.8

Solid Fe/Liquid Zn Interfacial Reaction of Hot-Dip Galvanized Dual-Phase Steels Reviewed

Naoki Takata, Makoto Kobashi, Masao Takeyama

Proceedings of the 9th Pacific Rim International Conference on Advanced Materials and Processing (PRICM9)   496-501   2016.8

Activities on TiAl in Japan and Approaches for Jet Engine Applications Reviewed

Masao TAKEYAMA

5th International Workshop on Titanium Aluminides Program and Abstracts,   3-01   2016.8

Effect of Creep Strain on Dynamic Phase Transformation of TiAl Based Alloys at 1073 K Reviewed

H. Wakabayashi, H. Nakashima, S. Hayashi, M. Takeyama

5th International Workshop on Titanium Aluminides(IWTA2016-Tokyo) Program and Abstracts   3-10   2016.8

Thermodynamic Calculation of Ti-Al-M Ternary Systems at Elevated Temperatures Reviewed

H. Nakashima, M. Takeyama

5th International Workshop on Titanium Aluminides(IWTA2016-Tokyo) Program and Abstracts   2-07   2016.8

High Temperature Oxidation Behavior of TiAl Alloys at 800 °C in Air, 5th International Workshop on Titanium Aluminides Reviewed

Shigenari HAYASHI, Shaaban ALI, Shinji OIKAWA, Takeshi IZUMI, Shinya IMANO, Akira YOSHINARI, Jun SATO, Masao TAKEYAMA

5th International Workshop on Titanium Aluminides Program and Abstracts   5-14   2016.8

Mechanical properties of austenitic heat-resistant Fe-20Cr-30Ni-2Nb steel at ambient temperature Reviewed

Naoya Kanno, Kazuhiro Yoshimura, Naoki Takata, Imanuel Tarigan, Masao Takeyama

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING   662   551–563 - 563   2016.4

Nanoindentation study on solid solution softening of Fe-rich Fe2Nb Laves phase by Ni in Fe-Nb-Ni ternary alloys Reviewed

Naoki Takata, Hassan Ghassemi-Armaki, Masao Takeyama, Sharvan Kumar

Intermetallics   70   7-16 - 16   2016.3

Microstructure control of dual-phase steels through hot-dip Al-Mg-Si alloy coating process Reviewed

Naoki Takata, Tadashi Tsukahara, Satoru Kobayashi, Masao TAKEYAMA

Naoki Takata, Tadashi Tsukahara, Satoru Kobayashi, Masao TAKEYAMA   56 ( 2 )   319–325 - 325   2016.2

Mechanical Properties of Fe2Al5 and FeAl3 Intermetallic Phases at Ambient Temperature Reviewed

Tadashi Tsukahara, Naoki Takata, Satoru Kobayashi, Masao Takeyama

Tetsu-to-Hagané   102 ( 2 )   89-95 - 95   2016.2

Microstructural Characterization of Gamma Prime Precipitates in Wrought Ni-Based Superalloy Inconel X-750 Reviewed

Hiromu Hisazawa, Yoshihiro Terada, Naoki Takata, Masao Takeyama

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015)   250-253   2015.6

Tensile Properties of Austentiic Heat Resisntat Steel of Fe-20Cr-30Ni-2Nb at Ambient Temperature Reviewed

Naoki Takata, Naoya Kanno, Masao Takeyama

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015)   169-172   2015.6

In-Situ Tensile Observation at 1073 K in Laves Phase Strengthened Fe-20Cr-30Ni-2Nb Steels Reviewed

Mari Yoshihara, Naoki Takata, Masao Takeyama

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015)   153-156   2015.6

3D Observation of Grain Boundary Precipitation of Fe2Nb Laves Phase in a Novel Austenitic Heat Resistant Steel Fe-20Cr-35Ni-2.5Nb Reviewed

Fagang Gao, Naoki Takata, Satoru Kobayashi, Masao Takeyama

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015)   35-38   2015.6

Effect of Ti Addition on the Formation of Fe2Nb (TCP) and Ni3Nb (GCP) Phases in Fe-20Cr-35Ni-2.5Nb Austenitic Heat Resistant Steel at 1073 K Reviewed

Hongmei Li, Fagang Gao, Naoki Takata, Satoru Kobayashi, Masao Takeyama

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015)   161-164   2015.6

Creep of Super Advanced Fe-Cr-Ni-Nb Austenitic Heat Resistant Steels at 1073 K for A-USC Power Plant Reviewed

Shion Mise, Taro Osaka, Takahiro Kimura, Naoki Takata, Satoru Kobayashi, Masao Takeyama

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015)   165-168   2015.6

Stability of Sigma Phase at Elevaed Temperatures in Mn Added Fe-Cr-Ni Austenitic Heat Resistant Steels Reviewed

Yoshiki Kumagai, Naoki Takata, Satoru Kobayashi, Masao Takeyama

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015)   157-160   2015.6

In-situ Observation of the Fracture Behavior of the Oxide Scale on the Fe-20Cr-35Ni-2.5Nb-0.03B-0.1Zr steel during Tensile Deformation Reviewed

Takehiro SUMITA, Mitsutoshi UEDA, Masao TAKEYAMA

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT)   173 - 176   2015.6

Past, Present and Future Roles of JSPS 123rd Committee for the R & D of Heat-resistant Materials and Alloys in Japan

Masao TAKEYAMA

The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015)Abstract _JSPS 123 Committee Report   56 ( 2 )   39   2015.6

Creep strength of the GTAW welded joint of new 18at%Cr-30at%Ni-Nb austenitic steel at 700℃ Reviewed

Yasushi HASEGAWA, Mitsuharu YONEMURA, Masaaki IGARASHI, Hiroshi, MORIMOTO, Masao TAKEYAMA

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT)   31 - 34   2015.6

Steam Oxidation Resistance of the Modified Fe-20Cr-35Ni-2.5Nb (at.%) Steel at 1073 K Reviewed

Mitsutoshi UEDA, Kei CHIKAMA, Masao TAKEYAMA

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT)   39 - 41   2015.6

Effects of Phosphorus Addition on Formation of Carbide in Austenitic Heat Resisting Steels Reviewed

Katsuhiko OHISHI, Toshihiro UEHARA, Masao TAKEYAMA

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT)   19 - 22   2015.6

Phase Equilibria among β-Ti/-Ti/ -TiAl Phases at 1473 K and 1373 K in the TiAl Alloys with the Combined Addition of Transition Metals Reviewed

Hirotoyo NAKASHIMA, Satoru KOBAYASHI, Masao TAKEYAMA

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT)   327 - 330   2015.6

Microstructure Factors Controlling the Grain-boundary Precipitation of Ni3Nb-δ (D0a) Phase in Ni-base Alloys Reviewed

Shuntaro IDA, Satoru KOBAYASHI, Masao TAKEYAMA

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT)   308-311   2015.6

Effect of Microstructural Stability on Creep Behavior of Wrought TiAl Based Alloy Using β-Ti Phase Reviewed

Hideki WAKABAYASHI, Shin USUI, Hirotoyo NAKASHIMA, Satoru KOBAYASHI, Masao TAKEYAMA

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015)   365 - 368   2015.6

In-Situ X-Ray Diffraction Analysis of Fe-Cr-Al Alloys During Initial Oxidation using Synchrotron Radiation Reviewed

Suzue YONEDA, Shigenari HAYASHI, Shigeharu UKAI, Masao TAKEYAMA

Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT)   375 - 378   2015.6

Crystallography of Bcc/T1/T2 Three-Phase Microstructure in the Directionally Solidified Mo-Nb-Si-B Alloy Reviewed

Mater. Res. Soc. Symp. Proc.   1760   mrsf14-1760-yy03-03   2015.3

Microstructure Evolution of Oxide Scale on the Fe-20Cr-30Ni-2Nb (at.%) Steel in the Initial Stage of Steam Oxidation at 1073 K

Mitsutoshi UEDA, Ayumi OKUBO, Masao Takeyama, Toshio Maruyama

55 ( 2 )   191 - 191   2014.11

CREEP OF THE NOVEL AUSTENITIC HEAT RESISTANT STEEL OF FE-20CR-30NI-2NB UNDER STEAM ATMOSPHERE AT 1073 K Reviewed

Yu Misosaku, Imanuel Tarigan, Naoki Takata, Mitsutoshi Ueda, Toshio Maruyama, Masao Takeyama

Advances in Materials Technology for Fossil Power Plants (Proceedings from 8th International Conference, October 22-25, 2013, Waikoloa, Hawaii, USA)   1352-1362   2013.10

Plastic deformation of the C14 Laves phase (Fe,Ni)2Nb Reviewed

N. Takata, H. Ghassemi Armaki, Y. Terada, M. Takeyama, K. S. Kumar

Scripta Materialia   68 ( 8 )   615 - 618   2013.4

Control of Gamma Prime Precipitation Morphology and Mechanical Properties by Partial Solution Treatment on Nickel based Alloy, U 720 LI

TAKAHASHI Satoshi, NISHIKIORI Sadao, ISHIGE Kengo, TAKEYAMA Masao

52 ( 2 )   43 - 48   2012.4

Mass Effect on the Precipitation of γ' and the Tensile Properties of Ni-Fe Base Superalloy FENIX-700 for A-USC Turbine Rotor Shafts

TAKAHASHI Tatsuya, OHSAKI Satoru, IMANO Shinya, SAITO Eiji, TAKEYAMA Masao

51 ( 5 )   289 - 294   2011.10

鍛造TiAl基合金の現状と展望¬−その組織設計哲学− Invited Reviewed

竹山雅夫

ふぇらむ, 日本鉄鋼協会会報   15 ( 11 )   26 - 33   2010.11

金属間化合物を強化相とするFe-20Cr-30Ni-2Nbオーステナイト鋼の高温水蒸気酸化

山下正和, 上田光敏, 河村憲一, 竹山雅夫, 丸山俊夫

（独）日本学術振興会 耐熱金属材料第123委員会   50 ( 2 )   267 - 276   2009

Fe2Nb Laves相の構造とそのオーステナイト系耐熱鋼の強化相としての役割

高田尚記, 松尾 孝, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   50 ( 3 )   389 - 400   2009

Ni基鍛造超合金のクリープ特性に及ぼすNi3Al-γ’相の役割

高橋達也, 大崎 智, 今野晋也, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会   50 ( 3 )   417 - 424   2009

Influence of Carbon on Phase Equilibria and Microstructure Evolutions in Ti-Al-Nb Ternary System

SHUN OINUMA, MASAFUMI KURASHIGE, TAKASHI MATSUO, MASAO TAKEYAMA

Report of the 123rd Committee on Heat-Resisting Materials and Alloys, Japan Society for the Promotion of Science   50 ( 2 )   255 - 266   2009

High Temperature Steam Oxidation of Fe-20Cr-30Ni-2Nb Sustenitic Steel Strengthened by Intermetallic Compounds

MASAKAZU YAMASHITA, TOSHIMITSU UEDA, KENICHI KAWAMURA, MASAO TAKEYAMA, TOSHIO MARUYAMA

Report of the 123rd Committee on Heat-Resisting Materials and Alloys, Japan Society for the Promotion of Science   50 ( 2 )   267 - 276   2009

Effects of Stress on Phase Stability of Ni-based Superalloy U720LI with Duplex Grain Structure

SATOSHI TAKAHASHI, YUSA SATORU, SADAO NISHIKIORI, MASAO TAKEYAMA

Report of the 123rd Committee on Heat-Resisting Materials and Alloys, Japan Society for the Promotion of Science   50 ( 2 )   211 - 218   2009

Role of Ni3Al-γ’ Phase on Creep Property of Wrought Ni Based Superalloy

Tatsuya TAKAHASHI, Satoru OHSAKI, Shinya IMANO, MASAO TAKEYAMA

Report of the 123rd Committee on Heat-Resisting Materials and Alloys, Japan Society for the Promotion of Science   50 ( 3 )   417 - 424   2009

混粒組織を有するNi基超合金U720LIの組織安定性におよぼす応力負荷の影響

高橋聰, 遊佐覚, 錦織貞郎, 竹山雅夫

（独）日本学術振興会 耐熱金属材料第123委員会   50 ( 2 )   211 - 218   2009

Structure and Phase Stability of Transition Metal Laves Phase

Shigehiro Ishikawa, Naoki Takata, TAKASHI MATSUO, MASAO TAKEYAMA

Report of the 123rd Committee on Heat-Resisting Materials and Alloys, Japan Society for Promotion of Science   50 ( 3 )   347 - 360   2009

Structure of Fe2Nb Laves Phase and Its Role as Strengthener in Austenitic Heat Resistance Steels

Naoki Takata, TAKASHI MATSUO, MASAO TAKEYAMA

Report of the 123rd Committee on Heat-Resisting Materials and Alloys, Japan Society for the Promotion of Science   50 ( 3 )   389 - 400   2009

遷移金属Laves相の構造と相安定性

石川茂浩, 高田尚記, 松尾孝, 竹山雅夫

(独)日本学術振興会 耐熱金属材料第123委員会研究報告   50 ( 3 )   347 - 360   2009

Ti-Al-Nb ３元系の相平衡及び組織形成に及ぼす炭素の効果

生沼駿, 倉茂将史, 松尾孝, 竹山雅夫

（独）日本学術振興会 耐熱金属材料第123委員会   50 ( 2 )   255 - 266   2009

Transmission Electron Microscopy of Fe(2)Nb Laves Phase With C14 Structure in Fe-Nb-Ni Alloys Reviewed

Takata Naoki, Ishikawa Shigehiro, Matsuo Takashi, Takeyama Masao

ADVANCED INTERMETALLIC-BASED ALLOYS FOR EXTREME ENVIRONMENT AND ENERGY APPLICATIONS   1128   475-480   2009

耐熱材料の材料科学−微細組織制御− ，「CO2削減にむけた耐熱鋼君かの最近の進展」， Invited Reviewed

竹山雅夫

第194，195回西山記念技術講座，日本鉄鋼協会，   1-24   2008.5

Alloying effects on creep and oxidation resistance of austenitic stainless steel alloys employing intermetallic precipitates

Y. Yamamoto, A. Takeyama, Z. P. Lu, C. T. Liu, N. D. Evans, P. J. Maziasz, M. P. Brady

INTERMETALLICS   16 ( 3 )   453 - 462   2008.3

TiAl基合金のラメラ界面における破壊挙動

宮口大輔, 大津雅亮, 高島和希, 川上雄士, 竹山雅夫

日本金属学会・日本鉄鋼協会九州支部合同学術講演会講演概要集   2008   2008

Recent Trend and Prospects for Gamma TiAl Alloys

Masao TAKEYAMA

48 ( 3 )   277 - 288   2007.11

Alumina-forming austenitic stainless steels strengthened by laves phase and MC carbide precipitates

Y. Yamamoto, M. P. Brady, Z. P. Lu, C. T. Liu, M. Takeyama, P. J. Maziasz, B. A. Pint

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE   38A ( 11 )   2737 - 2746   2007.11

Experimental studies and thermodynamic simulation of phase transformations in high Nb containing gamma-TiAl based alloys

Harald F. Chladil, Helmut Clemens, Gerald A. Zickler, Masao Takeyama, Ernst Kozeschnik, Arno Bartels, Thomas Buslaps, Rainer Gerling, Sascha Kremmer, LaReine Yeoh, Klaus-Dieter Liss

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH   98 ( 11 )   1131 - 1137   2007.11

鋼の素晴らしさ 窶盗｢界最高の性質に挑戦する自動車用鋼板窶骭

竹山雅夫

化学と教育   76 ( 8 )   386 - 389   2007

:Overview Based on Complied Statistics

Mishima Yoshinao, Inui Haruyuki, Takeyama Masao, Takanashi Kouki, Nakatani Ryoichi, Miura Seiji, Yoshimi Kyousuke, Hosoda Hideki, Nakano Takayoshi, Kimura Yoshisato, Yasuda Hiroyuki, Hata Satoshi

Bulletin of the Japan Institute of Metals   46 ( 4 )   278 - 283   2007

TiAl PST結晶のマイクロスケール破壊試験

高島和希, 梶原清秀, 川上雄士, 大津雅亮, 竹山雅夫

日本金属学会講演概要   140th   2007

鋼の素晴らしさー世界最高の性質に挑戦する自動車用鋼板— Invited Reviewed

竹山雅夫

ふぇらむ 日本鉄鋼協会会報   15 ( 11 )   26 - 33   2007

Formation and morphology of Kurnakov type D0(22) compound in disordered face-centered cubic gamma-(Ni, Fe) matrix alloys

A Suzuki, M Takeyama

JOURNAL OF MATERIALS RESEARCH   21 ( 1 )   21 - 26   2006.1

Nucleation and Growth of β Phase Precipitated along the Pathway of α→β+γ in γ-TiAl Alloys

M. Takeyama, H. Fukushima, S. Kobayashi, T. Matsuo

Solid-Solid Phase Transformations in Inorganic Materials, TMS   vol.1   397 - 402   2006

γ-Fe (オーステナイト）と平衡するFe₂Mo Laves 相の相安定性にお汚すNi及びNbsの効果

石川茂浩, 松尾孝, 竹山雅夫

日本学術振興会   47 ( 3 )   381 - 390   2006

Ni-V合金におけるA1(fcc)/D0₂₂(bct)２相整合組織

鈴木茜, 竹山雅夫

日本金属学会, 材料開発のための顕微鏡法と応用写真集   164   2006

Effect of Ni and Nb on the Phase Stability of Fe₂Mo Laves Phase in Equilibrium with γ-Fe

Shigehiro Ishikawa, Matsuo Takashi, Masao Takeyama

Japan Society for the Promotion of Science   47 ( 3 )   381 - 390   2006

Phase Transformations of A1→D0_22_ in Ni-V Binary Alloys

Solid-Solid Phase Transformations in Inorganic Materials, TMS   vol.1   237 - 242   2006

Possibility of intermetallic phases as strengthener for ferrous materials at elevated temperatures

MASAO TAKEYAMA

KINZOKU MATERIALS SCIENCE & TECHNOLOGY   76 ( 7 )   11 - 16   2006

Formation and morphology of Kurnakov type D0₂₂ compound in disordered face-centered cubic γ-(Ni, Fe) matrix alloys

A. Suzuki, M. Takeyama

J. Mater. Res.   21 ( 1 )   21 - 26   2006

Fe-C系状態図と標準組織

竹山雅夫

日本熱処理技術協会 平成17年度 第4回熱処理技術セミナー 熱処理応用講座（その３）   1-1 - 1-14   2006

Nucleation and Growth of β Phase Precipitated along the Pathway of α→β+γ in γ-TiAl Alloys

M. Takeyama, H. Fukushima, S. Kobayashi, T. Matsuo

Solid-Solid Phase Transformations in Inorganic Materials, TMS   vol.1   397 - 402   2006

Decomposition of High-temperature α-Ti Phase along the Pathway of α→β+γ in γ-TiAl Alloys

S. Kobayashi, M. Takeyama

Solid-Solid Phase Transformations in Inorganic Materials, TMS   vol.1   391 - 396   2006

鉄鋼材料の強化相としての金属間化合物の可能性

竹山雅夫

金属，アグネ技術センター   76 ( 7 )   11 - 16   2006

Decomposition of High-temperature α-Ti Phase along the Pathway of α→β+γ in γ-TiAl Alloys

S. Kobayashi, M. Takeyama

Solid-Solid Phase Transformations in Inorganic Materials, TMS   vol.1   391 - 396   2006

Phase Transformations of A1→D0_22_ in Ni-V Binary Alloys

Solid-Solid Phase Transformations in Inorganic Materials, TMS   vol.1   237 - 242   2006

Physical metallurgy of single crystal gamma titanium aluminide alloys: orientation control and thermal stability of lamellar microstructure

Y Yamamoto, M Takeyama

INTERMETALLICS   13 ( 9 )   965 - 970   2005.9

Fabrication of TiAl components by means of hot forging and machining

T Tetsui, K Shindo, S Kaji, S Kobayashi, M Takeyama

INTERMETALLICS   13 ( 9 )   971 - 978   2005.9

Impact properties of hot-worked gamma alloys with BCC beta-Ti phase

K Shindo, T Tetsui, T Kobayashi, S Morita, S Kobayashi, M Takeyama

INTEGRATIVE AND INTERDISCIPLINARY ASPECTS OF INTERMETALLICS   842   247 - 252   2005

Ni-41Cr-7Al合金の機械的性質に及ぼすセル状組織の影響

岡本真吾, 橋本秀則, 松本武彦, 松尾孝, 竹山雅夫

学振第123委員会研究報告   46 ( 1 )   59 - 66   2005

Formation and morphology of Kurnakov type D0(22) compound in disordered fcc gamma-(Ni, Fe) matrix alloys

A Suzuki, M Takeyama

INTEGRATIVE AND INTERDISCIPLINARY ASPECTS OF INTERMETALLICS   842   479 - 484   2005

Fe-Ni-Mo３元系の1173 Kにおけるα-Fe (A2), γ-Fe (A1), λ-Fe_2_Mo (C14)相間の相平衡

石川茂浩, 五味伸幸, 松尾孝, 竹山雅夫

学振第123委員会研究報告   45 ( 1 )   25 - 32   2005

Formation and morphology of Kurnakov type D0(22) compound in disordered fcc gamma-(Ni, Fe) matrix alloys

A Suzuki, M Takeyama

INTEGRATIVE AND INTERDISCIPLINARY ASPECTS OF INTERMETALLICS   842   479 - 484   2005

金属の基礎

竹山雅夫

日本熱処理技術協会 平成17年度 熱処理技術セミナー 熱処理基礎講座   1-1 - 1-13   2005

Micro fracture toughness testing of TiAl based alloys with a fully lamellar structure

K Takashima, TP Halford, D Rudinal, Y Higo, M Takeyama

Integrative and Interdisciplinary Aspects of Intermetallics   842   175 - 180   2005

Phase equilibria and lattice parameters of Fe2Nb laves phase in Fe-Ni-Nb ternary system at elevated temperatures

M Takeyama, N Gomi, S Morita, T Matsuo

Integrative and Interdisciplinary Aspects of Intermetallics   842   461 - 466   2005

Alloying effect on stability of multi-variant structure of Ni3V at elevated temperatures

A Suzuki, H Kojima, T Matsuo, M Takeyama

INTERMETALLICS   12 ( 7-9 )   969 - 975   2004.7

Change in Lamellar Structure in Ti-48Al PST with Creep Deformation

Current Advances in materials and Processes   17 ( 6 )   p25   2004

Phase Equilibria between γ-Fe(A1)/λ-Fe_2_Mo(C14) in Fe-Ni-Mo Ternary System

Current Advances in materials and Processes   17 ( 6 )   p33   2004

Alloy Design Concept for Austenitic Heat Resisting Steels Strengthened by Intermetallics

MASAO TAKEYAMA

ISIJ 2004 Fall Meeitng,Forum Improvement of Heat Resistant Stainless Steel and its Alloy Design,   9699   15 - 20   2004

Mechanical Properties of Ni-41Cr-7Al with Cellular Precipitation of Ni_3_Al-γ' Phase

Current Advances in materials and Processes   17 ( 6 )   p31   2004

Transmission Electron Microscopy on Precipitated β-Ti Phase in Lamellar Microstructure in γ-TiAl Based Alloy

Current Advances in materials and Processes   17 ( 6 )   p26   2004

EBSD Analysis of the <110] Orientation in Gamma TiAl Single and PST Crystals with L1_0_ Structure

Current Advances in materials and Processes   17 ( 6 )   p36   2004

Creep Deformation of Ti-42Al-8V with Lamellar and (β＋γ)Bloch Structure.

Current Advances in Materials and Processes   17 ( 6 )   P16   2004

Fe-Ni-Mo３元系の高温における相平衡とFe2Mo (C14) 相の相安定性

石川茂浩, 五味伸幸, 松尾孝, 竹山雅夫

日本金属学会講演概要   135   204   2004

β相を含むTiAl合金の鍛造・圧延組織の集合組織評価

白根孝広, 鉄井利光, 新藤健太郎, 竹山雅夫

日本金属学会講演概要   134   410   2004

ラメラおよび塊状β＋γ組織を有するTi42Al-8V合金のクリープ変形

関根伸仁, 竹山雅夫, 松尾孝

材料とプロセス   17 ( 6 )   P16   2004

Ti-48Al PST結晶のクリープ変形に伴うラメラ組織の変化

岡秀樹, 九布白圭司, 竹山雅夫, 松尾孝

材料とプロセス   17 ( 6 )   p25   2004