Effect of Scan Speed on Microstructure and Tensile Properties of Ti–48Al–2Cr–2Nb Alloys Fabricated via Additive Manufacturing

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

Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals　Vol. 88　No. 9　p. 198-204　2024/09/01　Research paper (scientific journal)

Novel strengthening mechanism of laser powder bed fusion-manufactured Inconel 718: Effects of customized hierarchical interfaces

Tsuyoshi Mayama, Takuya Ishimoto, Masakazu Tane, Ken Cho, Koki Manabe, Daisuke Miyashita, Shota Higashino, Taichi Kikukawa, Hiroyuki Y. Yasuda, Takayoshi Nakano

Additive Manufacturing　Vol. 93　2024/08/05　Research paper (scientific journal)

Effect of Mn Content on Hydrogen Embrittlement Resistance of Tempered Martensite in Low Alloy Steel

Shinji Yoshida, Yuji Arai, Tomohiko Omura, Ken Cho, Hiroyuki Y.Yasuda

Tetsu-to-Hagane　Vol. 110　No. 4　p. 385-394　2024/03/01　Research paper (scientific journal)

Effect of Cooling Rate on Powder Characteristics and Microstructural Evolution of Gas Atomized β-Solidifying γ-TiAl Alloy Powder

Sung Hyun Park, Ryosuke Ozasa, Ozkan Gokcekaya, Ken Cho, Hiroyuki Y. Yasuda, Myung Hoon Oh, Young Won Kim, Takayoshi Nakano

Materials Transactions　Vol. 65　No. 2　p. 199-204　2024/02　Research paper (scientific journal)

Custom Mechano-Functional Control by Formation of Specific Interfaces via Metal 3D Printing―Learning from Hierarchical Anisotropic Architecture in Bone

Nakano Takayoshi, Ishimoto Takuya, Matsugaki Aira, Ozasa Ryosuke, Gokcekaya Ozkan, Yasuda Hiroyuki Y., Cho Ken, Koizumi Yuichiro, Okugawa Masayuki, Yoshiya Masato, Fujii Susumu, Tane Masakazu, Miyoshi Eisuke, Higashino Shota

Materia Japan　Vol. 63　No. 1　p. 36-41　2024/01/01

Unusual Precipitation at Grain Boundaries in Non-Equiatomic CoCrFeMnNi High Entropy Alloys

Hiroyuki Y. Yasuda, Masaki Horiguchi, Ken Cho, Takahiro Masuda, Takeshi Nagase

Solid State Phenomena　Vol. 353　p. 25-30　2023/12/05　Research paper (scientific journal)

Microstructure Evolution of Gas-Atomized β-Solidifying γ-TiAl Alloy Powder during Subsequent Heat Treatment

Sung Hyun Park, Ozkan Gokcekaya, Ryosuke Ozasa, Ken Cho, Hiroyuki Y. Yasuda, Myung Hoon Oh, Takayoshi Nakano

Crystals　Vol. 13　No. 12　2023/12　Research paper (scientific journal)

Effect of Dislocation Density on Hydrogen Embrittlement Resistance of Tempered Martensite in Low Alloy Steels

Shinji Yoshida, Yuji Arai, Tomohiko Omura, Ken Cho, Hiroyuki Yasuda

Tetsu-to-Hagane　Vol. 109　No. 10　p. 837-845　2023/10/01　Research paper (scientific journal)

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　Vol. 64　No. 6　p. 1112-1118　2023　Research paper (scientific journal)

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　Vol. 64　No. 1　p. 44-49　2023　Research paper (scientific journal)

航空機ジェットエンジン用TiAl合金の電子ビーム積層造形

安田弘行, 趙 研, 當代光陽, 中島広豊, 竹山雅夫, 中野貴由

ふぇらむ　Vol. 27　No. 12　p. 913-919　2022/12

Evaluation of Hall-Petch Coefficient at Grain Boundaries of Fe-based Alloys by Nanoindentation Method

Hiroyuki Yasuda, Ken Cho, Yohei Murozumi, Masanobu Nomoto, Hiroki Toda, Wataru Suzuki

Tetsu-to-Hagane　Vol. 108　No. 10　p. 751-761　2022/10　Research paper (scientific journal)

Influence of input energy density on morphology of unique layered microstructure of <i>γ</i>-TiAl alloys fabricated by electron beam powder bed fusion

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

Journal of Japan Institute of Light Metals　Vol. 72　No. 6　p. 298-303　2022/06/15　Research paper (scientific journal)

Metal Additive Manufacturing (AM) based on Anisotropic Custom-Design Concept

小泉雄一郎, 奥川将行, 石本卓也, 石本卓也, 趙研, 安田弘行, 中野貴由

日本ガスタービン学会誌　Vol. 50　No. 2　p. 84-89　2022/03

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

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

Additive Manufacturing　Vol. 46　p. 102091-102091　2021/10　Research paper (scientific journal)

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

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

Crystals　Vol. 11　No. 7　p. 809-809　2021/07/12　Research paper (scientific journal)

Deformation behavior of HfNbTaTiZr high entropy alloy singe crystals and polycrystals

Hiroyuki Y. Yasuda, Yusuke Yamada, Ken Cho, Takeshi Nagase

Materials Science and Engineering: A　Vol. 809　p. 140983-140983　2021/02　Research paper (scientific journal)

Effect of Chemical Composition on Grain Refinement of Al_xCoCrFeNi High Entropy Alloys with NiAl Grain Boundary Precipitates

Hiroyuki Y. Yasuda, Hiroyuki Miyamoto, Takuya Inagaki, Ken Cho, Takeshi Nagase

Materials Science Forum　Vol. 1016　p. 1690-1695　2021/01/05　Research paper (scientific journal)

Effect of grain refinement on room temperature ductility of ferritic heat-resistant alloys strengthened by NiAl precipitates

Ken Cho, Naoki Kawahara, Hiroyuki Y. Yasuda

ISIJ International　Vol. 60　No. 10　p. 2285-2290　2020/10/15　Research paper (scientific journal)

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　Vol. 9　No. 4　p. 180-184　2020/07　Research paper (scientific journal)

Influence of Mo addition on deformation behavior of metastable β-type Ti alloys

Vol. 68　No. 2　p. 166-170　2020/04　Research paper (other academic)

Study on formation mechanism of {332}<113> deformation twinning in metastable β-type Ti alloy focusing on stress-induced α” martensite phase

Ken Cho, Ryota Morioka, Stefanus Harjo, Takuro Kawasaki, Hiroyuki Y. Yasuda

Scripta Materialia　Vol. 177　p. 106-111　2020/03　Research paper (scientific journal)

Investigation of strengthening mechanism in Ni–38Cr-3.8Al alloy with fine lamellar structure by in situ neutron diffraction analysis

Yoshihiko Koyanagi, Shigeki Ueta, Takuro Kawasaki, Stefanus Harjo, Ken Cho, Hiroyuki Y. Yasuda

Materials Science and Engineering: A　Vol. 773　p. 138822-138822　2020/01　Research paper (scientific journal)

Effects of NiAl precipitate microstructure, loading axis and temperature on deformation behavior of Fe–Al–Ni single crystals

Hiroyuki Y. Yasuda, Taisuke Edahiro, Naoki Takeoka, Takashi Yoshimoto, Masataka Mizuno, Ken Cho

Intermetallics　Vol. 115　p. 106627-106627　2019/12　Research paper (scientific journal)

Heat-Resistant Fe-Al-Ni Based Alloys with NiAl Precipitates

H.Y. Yasuda, K. Cho, T. Edahiro, K. Ikeda

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　Research paper (international conference proceedings)

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

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　Research paper (international conference proceedings)

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　Vol. 60　No. 4　p. 50-56　2019/10

Creep behavior of Ni–38Cr-3.8Al alloy with lamellar structure formed by discontinuous precipitation

Yoshihiko Koyanagi, Hiroyuki Takabayashi, Shigeki Ueta, Ken Cho, Hiroyuki Y. Yasuda

Materials Science and Engineering: A　Vol. 766　p. 138333-138333　2019/10　Research paper (scientific journal)

Effects of {332}〈113〉 Deformation Twinning on Fatigue Behavior of Ti–Mn System Alloys

Ken Cho, Kohei Yuki, Hiroki Kobata, Mitsuo Niinomi, Hiroyuki Y. Yasuda

MATERIALS TRANSACTIONS　Vol. 60　No. 9　p. 1850-1856　2019/07/01　Research paper (scientific journal)

Microstructure and Mechanical Properties of TiAl Alloys Prepared by Additive Manufacturing

Vol. 8　No. 3　p. 78-83　2019/05

高硬度高耐食Ni基合金DSA® 760のセル状析出におよぼすCr量の影響

小柳禎彦, 高林宏之, 安田弘行

電気製鋼　Vol. 89　No. 2　p. 65-74　2018/12　Research paper (scientific journal)

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

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

Materials Science Forum　Vol. 941　p. 1597-1602　2018/12　Research paper (scientific journal)

Influence of Cr Content on Cellular Precipitation Behaviour of Ni-38Cr-3.8Al Alloy with Lamellar Structure

Yoshihiko Koyanagi, Hiroyuki Takabayashi, Hiroyuki Y. Yasuda

Materials Science Forum　Vol. 941　p. 1203-1209　2018/12　Research paper (scientific journal)

Effects of Mo Addition on Deformation Behavior of Metastable Beta-Type Ti-Mn Single Crystals

Ryota Morioka, Ken Cho, Hiroyuki Y. Yasuda

Materials Science Forum　Vol. 941　p. 1360-1365　2018/12　Research paper (scientific journal)

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

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

Materials Science Forum　Vol. 941　p. 1366-1371　2018/12　Research paper (scientific journal)

Deformation Behavior of Fe-Al Single Crystals Containing Fe₂AlTi Precipitates

Hiroyuki Y. Yasuda, Hiroyuki Yakage, Yunima Shinohara, Ken Cho

Materials Science Forum　Vol. 941　p. 1372-1377　2018/12　Research paper (scientific journal)

{332}<113>変形双晶導入による低コスト準安定β型チタン合金の強度－延性バランス改善

趙 研, 新家光雄, 安田弘行

チタン　Vol. 66　p. 274-277　2018/10

Grain refinement of non-equiatomic Cr-rich CoCrFeMnNi high-entropy alloys through combination of cold rolling and precipitation of σ phase

Ken Cho, Yumi Fujioka, Takeshi Nagase, Hiroyuki Y. Yasuda

Materials Science and Engineering: A　Vol. 735　p. 191-200　2018/09　Research paper (scientific journal)

Improvement of room and high temperature tensile properties of NiAl-strengthened ferritic heat-resistant steels through Mo addition

Ken Cho, Kenshi Ikeda, Hiroyuki Y. Yasuda

Materials Science and Engineering: A　Vol. 728　p. 239-250　2018/06　Research paper (scientific journal)

Oxidation of Benzyl Alcohol over Nanoporous Au–CeO2 Catalysts Prepared from Amorphous Alloys and Effect of Alloying Au with Amorphous Alloys

Ai Nozaki, Tasuku Yasuoka, Yasutaka Kuwahara, Tetsutaro Ohmichi, Kohsuke Mori, Takeshi Nagase, Hiroyuki Y. Yasuda, Hiromi Yamashita

Industrial & Engineering Chemistry Research　Vol. 57　No. 16　p. 5599-5605　2018/04/25　Research paper (scientific journal)

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

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

Intermetallics　Vol. 95　p. 1-10　2018/04　Research paper (scientific journal)

Origin of pseudoelasticity by twinning in D03-type Fe3Ga

Masataka Mizuno, Hiroyuki Y. Yasuda, Hideki Araki

Computational Materials Science　Vol. 145　p. 154-162　2018/04　Research paper (scientific journal)

The effect of HIP treatment on the mechanical properties of titanium aluminide additive manufactured by EBM

Daisuke Kondo, Hiroyuki Yasuda, Takayoshi Nakano, Ken Cho, Ayako Ikeda, Minoru Ueda, Yuto Nagamachi

Proceedings of International Conference on Hot Isostatic Pressing 2017　2018/01　Research paper (international conference proceedings)

Effects of CoAl precipitates on deformation behavior of Fe-Al-Co single crystals

Hiroyuki Y. Yasuda, Yoshiaki Odawara, Kentaro Soma, Takashi Yoshimoto, Ken Cho

Intermetallics　Vol. 91　p. 140-149　2017/12　Research paper (scientific journal)

Formation of ultrafine-grained microstructure in Al 0.3 CoCrFeNi high entropy alloys with grain boundary precipitates

Hiroyuki Y. Yasuda, Hiroyuki Miyamoto, Ken Cho, Takeshi Nagase

Materials Letters　Vol. 199　p. 120-123　2017/07　Research paper (scientific journal)

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

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

Additive Manufacturing　Vol. 13　p. 61-70　2017/01　Research paper (scientific journal)

Deformation Behavior of Fe-Al-Co-Ti Single Crystals Containing Co₂AlTi Precipitates

Hiroyuki Y. Yasuda, Ryota Kobayashi

Materials Science Forum　Vol. 879　p. 2210-2215　2016/11/15　Research paper (scientific journal)

Skeletal Au prepared from Au-Zr amorphous alloys with controlled atomic compositions and arrangement for active oxidation of benzyl alcohol

Nozaki, A., Tanihara, Y., Kuwahara, Y., Ohmichi, T., Mori, K., Nagase, T., Yasuda, H.Y., Calers, C., Louis, C., Yamashita, H.

Journal of Materials Chemistry A　Vol. 4　No. 21　p. 8458-8465　2016/05　Research paper (scientific journal)

Hydrogenation of 1-octene over skeletal Pd catalysts prepared from Pd-Zr amorphous alloys and the effect of Ni addition

Nozaki, A., Tanihara, Y., Kuwahara, Y., Ohmichi, T., Mori, K., Nagase, T., Yasuda, H.Y., Yamashita, H.

Catalysis Today　Vol. 265　p. 138-143　2016/05　Research paper (scientific journal)

Stability of pseudotwins in D03-type alloys calculated from first principles

Masataka Mizuno, Hiroyuki Y. Yasuda, Hideki Araki

Acta Materialia　Vol. 109　p. 82-89　2016/05　Research paper (scientific journal)

Skeletal Ni Catalysts Prepared from Amorphous Ni-Zr Alloys: Enhanced Catalytic Performance for Hydrogen Generation from Ammonia Borane

Ai Nozaki, Yasutomo Tanihara, Yasutaka Kuwahara, Tetsutaro Ohmichi, Kohsuke Mori, Takeshi Nagase, Hiroyuki Y. Yasuda, Hiromi Yamashita

ChemPhysChem　Vol. 17　No. 3　p. 412-417　2016/02　Research paper (scientific journal)

In situ transmission-electron-microscopy observation of solid-state amorphization behavior in Ti50Ni44Fe6 alloy by high-voltage electron microscopy

Takeshi Nagase, Atsushi Sasaki, Hiroyuki Y. Yasuda, Tomoyuki Terai, Takashi Fukuda, Tomoyuki Kakeshita

Acta Materialia　Vol. 104　p. 201-209　2016/02　Research paper (scientific journal)

Solid State Amorphization Behavior in Ti₅₀Ni₄₄Fe₆ Alloy Investigated by High Voltage Electron Microscopy (HVEM)

Nagase Takeshi, Sasaki Atsushi, Yasuda Hiroyuki, Terai Tomoyuki, Fukuda Takashi, Kakeshita Tomoyuki

Materia Japan　Vol. 55　No. 12　p. 586-586　2016

Dynamic strain aging of Al 0.3 CoCrFeNi high entropy alloy single crystals

Hiroyuki Y. Yasuda, Kyosuke Shigeno, Takeshi Nagase

Scripta Materialia　Vol. 108　p. 80-83　2015/11　Research paper (scientific journal)

Effect of NiAl Precipitates on Strength and Damping Capacity of Fe-Cr-Al Alloys

Mahito Morita, Hiroyuki Y. Yasuda

Tetsu-to-Hagane　Vol. 101　No. 7　p. 394-399　2015/07　Research paper (scientific journal)

22pCH-3 Stability of pseudo-twin in Fe_3Ga

Mizuno M., Araki H., Yasuda H.

Meeting Abstracts of the Physical Society of Japan　Vol. 70　p. 2733-2733　2015

金属間化合物の析出物を利用した新規強化機構

安田弘行

日本学術振興会「材料の微細組織と機能性」第133委員会第224回研究会講演概要集　2014/12　Research paper (other academic)

Development of High Temperature Structural Materials for Realizing Low Carbon Society

Vol. 66　No. 3　p. 103-105　2014/07

In Situ Observation of Pseudoelasticity in Fe₃Al Single Crystals with D0₃ Structure

Hiroyuki Y. Yasuda, Yasuhiro Oda, Takenori Maruyama, Mayumi Ojima, Yoshitaka Adachi

MATERIALS TRANSACTIONS　Vol. 55　No. 5　p. 788-795　2014/05　Research paper (scientific journal)

Effect of two-stage deformation on magnetic properties of hot-deformed Nd–Fe–B permanent magnets

T. Mouri, M. Kumano, H.Y. Yasuda, T. Nagase, R. Kato, Y. Nakazawa, H. Shimizu

Scripta Materialia　Vol. 78-79　p. 37-40　2014/05　Research paper (scientific journal)

Development of new materials by controlling dislocation motion

H. Y. Yasuda

No. 564　p. 4-9　2014/04

Variant selection of martensites in steel welded joints with low transformation temperature weld metals

Masaru Takahashi, Hiroyuki Y. Yasuda

Journal of Alloys and Compounds　Vol. 577　p. S601-S604　2013/11　Research paper (scientific journal)

Effect of Ga concentration on twinning pseudoelasticity in Fe–Ga single crystals

Hiroyuki Y. Yasuda, Yasuhiro Oda, Takuya Kishimoto, Takenori Maruyama

Journal of Alloys and Compounds　Vol. 577　p. S563-S567　2013/11　Research paper (scientific journal)

Effects of Ga Concentration, Heat Treatment and Deformation Temperature on Pseudoelasticity of Fe-Ga Polycrystals

Hiroyuki Y. Yasuda, Takenori Maruyama

Journal of the Japan Institute of Metals and Materials　Vol. 77　No. 6　p. 237-244　2013/06　Research paper (scientific journal)

Effect of Ni Doping on Strength and Damping Capacity of Fe–Al Alloys

Hiroyuki Y. Yasuda, Kouki Fukushima, Keiji Kouzai, Taisuke Edahiro

ISIJ International　Vol. 53　No. 4　p. 704-708　2013/04　Research paper (scientific journal)

MeV Electron Irradiation Induced Solid-State Amorphization (SSA) in B2 Intermetallic Compounds

Takeshi NAGASE, Atsushi SASAKI, Kazuya TAKIZAWA, Hiroyuki YASUDA, Tomoyuki TERAI, Takashi FUKUDA, Tomoyuki KAKESHITA, Masato WAKEDA, Yoji SHIBUTANI, Hidehiro YASUDA, Hirotaro MORI

Journal of the Society of Materials Science, Japan　Vol. 62　No. 3　p. 185-190　2013/03　Research paper (scientific journal)

Mechanical properties and hardening mechanism of Fe–Al–Ni single crystals containing NiAl precipitates

T. Edahiro, K. Kouzai, H.Y. Yasuda

Acta Materialia　Vol. 61　No. 5　p. 1716-1725　2013/03　Research paper (scientific journal)

Advanced materials design for fe-based shape memory alloys through structural control

Yasuda, H.Y.

Progress in Advanced Structural and Functional Materials Design　2013　Research paper (scientific journal)

Effects of Ga Concentration, Heat Treatment and Deformation Temperature on Pseudoelasticity of Fe&ndash;Ga Polycrystals

Hiroyuki Y. Yasuda, Takenori Maruyama

MATERIALS TRANSACTIONS　Vol. 54　No. 1　p. 36-42　2013/01　Research paper (scientific journal)

Orientation and deformation mechanisms of hot-deformed Nd-Fe-B magnets

R. Kato, Y. Nakazawa, H. Shimizu, M. Kumano, T. Nagase, H. Y. Yasuda

Proc. of The 22th International Workshop on Rare-Earth Permanent Magnets and heir Applications　2012/09　Research paper (international conference proceedings)

金属間化合物の析出による新規強化機構

安田弘行

第55回材料強度と破壊総合シンポジウム論文集　2012/03　Research paper (other academic)

Effect of sintering temperature on structure and bioactivity of HAp–5·0 wt-%SiO2bioceramic composites

X-W Li, X Zhang, P-L Zhang, H Yasuda, Y Umakoshi

Materials Technology　Vol. 27　No. 1　p. 46-48　2012/02　Research paper (scientific journal)

Effect of Third Elements on Pseudoelasticity in Fe₃Ga Alloys

Hiroyuki Y. Yasuda, Tsuyoshi Furuta, Takenori Maruyama

Materials Science Forum　Vol. 706-709　p. 2032-2037　2012/01　Research paper (scientific journal)

Pseudoelasticity in pseudo-binary Fe3(Al1−xGax) single crystals

H.Y. Yasuda, K. Shibata, Y. Umakoshi

Intermetallics　Vol. 19　No. 12　p. 1786-1793　2011/12　Research paper (scientific journal)

Tensile deformation behavior of Nd–Fe–B alloys

H.Y. Yasuda, M. Kumano, T. Nagase, R. Kato, H. Shimizu

Scripta Materialia　Vol. 65　No. 8　p. 743-746　2011/10　Research paper (scientific journal)

Stability of B2 phase in Ti–Ni–Fe alloys against MeV electron-irradiation-induced solid-state amorphization and martensite transformation

Takeshi Nagase, Atsushi Sasaki, Hiroyuki Y. Yasuda, Hirotaro Mori, Tomoyuki Terai, Tomoyuki Kakeshita

Intermetallics　Vol. 19　No. 9　p. 1313-1318　2011/09　Research paper (scientific journal)

Transformation and Twinning Pseudoelasticities in Fe₃Ga Single Crystals

Hiroyuki Y. Yasuda, Yasuhiro Oda, Takuya Kishimoto, Yukichi Umakoshi

Solid State Phenomena　Vol. 172-174　p. 31-36　2011/06　Research paper (scientific journal)

Pseudoelasticity of DO3-Type Fe3Al and Fe 3Ga-based alloys

Hiroyuki Y. Yasuda, Yukichi Umakoshi

Materials Research Society Symposium Proceedings　Vol. 1295　p. 21-32　2011　Research paper (international conference proceedings)

Temperature Dependence of Twinning Pseudoelasticity in Fe₃Ga Single Crystals

Hiroyuki Y. Yasuda, Takuya Kishimoto, Yukichi Umakoshi

MATERIALS TRANSACTIONS　Vol. 51　No. 12　p. 2196-2200　2010/12　Research paper (scientific journal)

Effect of long-period stacking ordered phase on mechanical properties of Mg97Zn1Y2 extruded alloy

K. Hagihara, A. Kinoshita, Y. Sugino, M. Yamasaki, Y. Kawamura, H.Y. Yasuda, Y. Umakoshi

Acta Materialia　Vol. 58　No. 19　p. 6282-6293　2010/11　Research paper (scientific journal)

Pseudoelastic behaviour of Fe3Al single crystals with D03 structure

H.Y. Yasuda, Y. Umakoshi

Intermetallics　Vol. 18　No. 7　p. 1273-1278　2010/07　Research paper (scientific journal)

Plastic deformation behavior of Mg97Zn1Y2 extruded alloys

K. HAGIHARA, A. KINOSHITA, Y. SUGINO, M. YAMASAKI, Y. KAWAMURA, H.Y. YASUDA, Y. UMAKOSHI

Transactions of Nonferrous Metals Society of China　Vol. 20　No. 7　p. 1259-1268　2010/07　Research paper (scientific journal)

Temperature Dependence of Compressive Deformation Behavior of Mg₈₉Zn₄Y₇ Extruded LPSO-Phase Alloys

Koji Hagihara, Akihito Kinoshita, Yuya Sugino, Michiaki Yamasaki, Yoshihito Kawamura, Hiroyuki Y. Yasuda, Yukichi Umakoshi

Materials Science Forum　Vol. 654-656　p. 607-610　2010/06　Research paper (scientific journal)

Plastic deformation behavior of Mg89Zn4Y7 extruded alloy composed of long-period stacking ordered phase

K. Hagihara, A. Kinoshita, Y. Sugino, M. Yamasaki, Y. Kawamura, H.Y. Yasuda, Y. Umakoshi

Intermetallics　Vol. 18　No. 5　p. 1079-1085　2010/05　Research paper (scientific journal)

Effect of Ms Temperature on Residual Stress in Welded Joints of High-Strength Steels

Chiaki Shiga, Hiroyuki Y. Yasuda, Kazuo Hiraoka, Hiroshi Suzuki

Welding in the World　Vol. 54　No. 3-4　p. R71-R79　2010/03　Research paper (scientific journal)

Pseudoelastic Behavior of Fe–Al Polycrystals

Hiroyuki Y. Yasuda, Keiji Kouzai, Yuuki Kawamura, Yukichi Umakoshi

ISIJ International　Vol. 50　No. 1　p. 147-151　2010/01　Research paper (scientific journal)

Magneto-mechanical and Pseudoelastic Damping of Fe–Al Based Single Crystals

Hiroyuki Y. Yasuda, Kouki Fukushima, Yuichiro Koizumi, Yoritoshi Minamino, Yukichi Umakoshi

ISIJ International　Vol. 49　No. 10　p. 1630-1635　2009/10　Research paper (scientific journal)

Unusual pseudoelastic behaviour of Fe3Ga shape memory alloys

H Y Yasuda, M Aoki, Y Oda, K Fukushima, Y Umakoshi

Journal of Physics: Conference Series　Vol. 165　p. 012053-012053　2009/05/01　Research paper (scientific journal)

Multimode pseudoelasticity in Fe–23.8at% Ga single crystals with D03 structure

H.Y. Yasuda, Y. Oda, M. Aoki, K. Fukushima, Y. Umakoshi

Intermetallics　Vol. 16　No. 11-12　p. 1298-1304　2008/11　Research paper (scientific journal)

Tension–compression asymmetry of pseudoelasticity in Fe–23.0at.%Al single crystals

H.Y. Yasuda, K. Yamaoka, Y. Oda, Y. Umakoshi

Scripta Materialia　Vol. 59　No. 7　p. 738-741　2008/10　Research paper (scientific journal)

Temperature Dependence of Pseudoelasticity and Shape Memory Effect in Fe3Ga Single Crystals with D03 Structure

Hiroyuki Y. Yasuda, Kouki Fukushima, Mitsuhiro Aoki, Yukichi Umakoshi

ISIJ International　Vol. 48　No. 7　p. 1014-1019　2008/07　Research paper (scientific journal)

Effect of Third Elements on Pseudoelastic Behavior in Fe₃Al Single Crystals

Hiroyuki Y. Yasuda, T. Kase, S. Minamiguchi, A. Yokoyama, Yukichi Umakoshi, P.M. Bronsveld, Jeff T.M. de Hosson

Materials Science Forum　Vol. 561-565　p. 391-394　2007/10　Research paper (scientific journal)

Control of Texture in Intermetallic Compounds by Thermomechanical Processing

Yukichi Umakoshi, Hiroyuki Y. Yasuda, Toshiya Sakata

Solid State Phenomena　Vol. 127　p. 9-14　2007/09/15　Part of collection (book)

Texture Control in Hydroxyapatite by Hot Forging

Hiroyuki Y. Yasuda, Yoshiyuki Noguchi, Yukichi Umakoshi, Akio Takaoka

MATERIALS TRANSACTIONS　Vol. 48　No. 8　p. 2062-2066　2007/08　Research paper (scientific journal)

Temperature dependence of pseudoelasticity in Fe3Al single crystals

H.Y. Yasuda, T. Nakajima, Y. Umakoshi

Intermetallics　Vol. 15　No. 5-6　p. 819-823　2007/05　Research paper (scientific journal)

Kink Band Formation and Its Effect on Recrystallization in Ordered and Disordered Ni₃Fe Single Crystals

Tatsuya Okada, Hiroyuki Y. Yasuda, Tetsuya Watanabe, Fukuji Inoko, Yukichi Umakoshi

MATERIALS TRANSACTIONS　Vol. 48　No. 4　p. 759-763　2007/04　Research paper (scientific journal)

Effect of the ordering process on pseudoelasticity in Fe3Ga single crystals

H.Y. Yasuda, M. Aoki, Y. Umakoshi

Acta Materialia　Vol. 55　No. 7　p. 2407-2415　2007/04　Research paper (scientific journal)

Pseudoelastic behavior of Fe3Ga single crystals with D0 3 structure

Hiroyuki Y. Yasuda, Mitsuhiro Aoki, Kouki Fukushima, Yukichi Umakoshi

Materials Research Society Symposium Proceedings　Vol. 980　p. 315-320　2007　Research paper (international conference proceedings)

Control of texture in intermetallic compounds by thermomechanical processing

Y. Umakoshi, H. Y. Yasuda, T. Sakata

Solid State Phenomena　Vol. 127　p. 9-14　2007　Research paper (international conference proceedings)

2113 Pseudoelastic Behavior Based on Reversible motion of Dislocations in Fe-Al Shape Memory Alloys

YASUDA Hiroyuki Y., KAWAMURA Yuki, UMAKOSHI Yukichi

The proceedings of the JSME annual meeting　Vol. 2007　p. 163-164　2007

Effects of dislocation and microstructure on pseudoelasticity in D0(3)-type Fe3Al single crystals

Yukichi Umakoshi, Takashi Nakajima, Hiroyuki Y. Yasuda

ADVANCED INTERMETALLIC-BASED ALLOYS　Vol. 980　p. 33-+　2007　Research paper (international conference proceedings)

Advances in Transmission Electron Microscopy: Self Healing or is Prevention Better than Cure?

de Hosson, J.T.M., Yasuda, H.Y.

Springer Series in Materials Science　Vol. 100　2007　Research paper (scientific journal)

Shape memory effect in Fe3Al single crystals with D03 structure

H.Y. Yasuda, T. Nakajima, Y. Umakoshi

Scripta Materialia　Vol. 55　No. 10　p. 859-862　2006/11　Research paper (scientific journal)

Effect of heat treatment on pseudoelasticity in Fe–25.0at.% Al single crystals

H.Y. Yasuda, T. Nakajima, S. Murakami, M. Ueda, Y. Umakoshi

Intermetallics　Vol. 14　No. 10-11　p. 1221-1225　2006/10　Research paper (scientific journal)

Effect of &beta;-TCP Size on Bone-Like Layer Growth and Adhesion of Osteoblast-Like Cells in Hydroxyapatite/&beta;-TCP Composites

Hiroyuki Y. Yasuda, Mitsuhiro Aoki, Yohei Fujita, Wataru Fujitani, Yukichi Umakoshi, Akio Takaoka

MATERIALS TRANSACTIONS　Vol. 47　No. 9　p. 2368-2372　2006/09　Research paper (scientific journal)

Effect of Crystal Structure on the Lightness of Zinc Electroplated Steel Sheet

Masanari KIMOTO, Mitsuharu YONEMURA, Hiroyuki YASUDA, Yukichi UMAKOSHI

Tetsu-to-Hagane　Vol. 92　No. 9　p. 551-556　2006/09　Research paper (scientific journal)

Bioactive ceramic composites sintered from hydroxyapatite and silica at 1200∘C: preparation, microstructures and in vitro bone-like layer growth

X. W. Li, H. Y. Yasuda, Y. Umakoshi

Journal of Materials Science: Materials in Medicine　Vol. 17　No. 6　p. 573-581　2006/06　Research paper (scientific journal)

Pseudoelasticity in Fe₃Al Single Crystals under Cyclic Loading

Hiroyuki Y. Yasuda, Keisuke Yamaoka, Yukichi Umakoshi

Materials Science Forum　Vol. 512　p. 25-30　2006/04/15　Part of collection (book)

Observation of Lattice Defects and Nondestructive Evaluation of Fatigue Life in FeAl and Ni₃Al Based Alloy by Means of Magnetic Measurement

Yukichi Umakoshi, Hiroyuki Y. Yasuda

Materials Science Forum　Vol. 512　p. 13-18　2006/04/15　Part of collection (book)

Surface Deformation Features in Ultrafine-Grained Copper Cyclically Stressed at Different Temperatures

X. W. Li, S. D. Wu, Y. Wu, H. Y. Yasuda, Y. Umakoshi

MATERIALS TRANSACTIONS　Vol. 46　No. 12　p. 3077-3080　2005/12　Research paper (scientific journal)

Effect of Al concentration on pseudoelasticity in FeAl single crystals

H YASUDA, T NAKAJIMA, K NAKANO, K YAMAOKA, M UEDA, Y UMAKOSHI

Acta Materialia　Vol. 53　No. 20　p. 5343-5351　2005/12　Research paper (scientific journal)

Temperature-Dependent Microstructures in Fatigued Ultrafine-Grained Copper Produced by Equal Channel Angular Pressing

X. W. Li, S. D. Wu, Y. Wu, H. Y. Yasuda, Y. Umakoshi

Advanced Engineering Materials　Vol. 7　No. 9　p. 829-833　2005/09　Research paper (scientific journal)

Nondestructive damage evaluation for γ′-Ni3(Al,Ti) single crystals containing disordered γ precipitates

Hiroyuki Y. Yasuda, Toshifumi Yanai, Yukichi Umakoshi

Journal of Applied Physics　Vol. 98　No. 4　p. 043905-043905　2005/08/15　Research paper (scientific journal)

Pseudoelasticity in Fe3Ga single crystals

H.Y. Yasuda, M. Aoki, A. Takaoka, Y. Umakoshi

Scripta Materialia　Vol. 53　No. 2　p. 253-257　2005/07　Research paper (scientific journal)

Quantitative analysis of gamma precipitates in cyclically deformed Ni-3(Al,Ti) single crystals using magnetic technique

Y Umakoshi, HY Yasuda, T Yanai

INTEGRATIVE AND INTERDISCIPLINARY ASPECTS OF INTERMETALLICS　Vol. 842　p. 79-84　2005　Research paper (international conference proceedings)

Reverse Transformation in Fe-Ni Bicrystals

M. Ueda, H. Yasuda, Y. Umakoshi

ISIJ International　Vol. 44　No. 11　p. 1924-1930　2004/11　Research paper (scientific journal)

磁気特性を利用した金属間化合物の非破壊検査、検査技術、

馬越佑吉, 安田弘行

検査技術　Vol. 9　No. 11　p. 13-18　2004/11

Production of nano-crystal and metallic glass by electron irradiation induced phase transformation.

Takeshi Nagase, Takayoshi Nakano, Hiroyuki Yasuda, Koji Hagihara, Yukichi Umakoshi

2004/10　Research paper (bulletin of university, research institution)

Bone-like Layer Growth and Adhesion of Osteoblast-like Cells on Calcium-deficient Hydroxyapatite Synthesized at Different pH

Hiroyuki Y. Yasuda, Yohei Fujita, Wataru Fujitani, Yukichi Umakoshi, Yoshio Sakka, Fengqiu Tang, Akio Takaoka, Nariaki Matsuura

MATERIALS TRANSACTIONS　Vol. 45　No. 5　p. 1782-1787　2004/05　Research paper (scientific journal)

Magnetic observation of deformation substructure in cyclically deformed Fe3Al single crystals

Hiroyuki Y. Yasuda, Takeshi Hatta, Yukichi Umakoshi

Science and Technology of Advanced Materials　Vol. 5　No. 1-2　p. 3-9　2004/01　Research paper (scientific journal)

Nondestruction lifetime prediction by magnetic measurements, Encyclopedia of Materials

Y. Umakoshi, H.Y. Yasuda

Encyclopedia of Materials, (2004)　2004/01

Effect of ordering process on giant pseudoelasticity in Fe3Al single crystals

H.Y. Yasuda, K. Nakano, T. Nakajima, M. Ueda, Y. Umakoshi

Acta Materialia　Vol. 51　No. 17　p. 5101-5112　2003/10　Research paper (scientific journal)

Orientation Dependence of Pseudoelasticity in Fe₃Al Single Crystals

Hiroyuki Y. Yasuda, K. Nakano, M. Ueda, Yukichi Umakoshi

Materials Science Forum　Vol. 426-432　p. 1801-1806　2003/08　Research paper (scientific journal)

Martensitic and Reverse Transformation in Fe-Ni Bicrystals

Masato Ueda, Hiroyuki Y. Yasuda, Yukichi Umakoshi

Materials Science Forum　Vol. 426-432　p. 1505-1510　2003/08　Research paper (scientific journal)

Interphase boundary fracture and grain boundary precipitation of Ni3Al(γ′) phase in β-NiAl bicrystals

T. Sakata, H.Y. Yasuda, Y. Umakoshi

Acta Materialia　Vol. 51　No. 6　p. 1561-1572　2003/04　Research paper (scientific journal)

Quantitative analysis of anti-phase boundary tubes in cyclically deformed Fe–40at.%Al single crystals by means of magnetic technique

H.Y. Yasuda, R. Jimba, Y. Umakoshi

Scripta Materialia　Vol. 48　No. 5　p. 589-592　2003/03　Research paper (scientific journal)

Effect of coherency on interphase boundary sliding in NiAl(β) bicrystals with film-like Ni3Al(γ′) precipitate along boundary

T. Sakata, H.Y. Yasuda, Y. Umakoshi

Scripta Materialia　Vol. 48　No. 6　p. 749-753　2003/03　Research paper (scientific journal)

Nondestructive evaluation of dislocation structure in cyclically deformed Ni3Fe single crystals using magnetic techniques

Hiroyuki Y. Yasuda, Akiko Sasaki, Yukichi Umakoshi

Journal of Applied Physics　Vol. 93　No. 3　p. 1472-1476　2003/02　Research paper (scientific journal)

Controlling factor for nucleation of martensite at grain boundary in Fe-Ni bicrystals

M. Ueda, H.Y. Yasuda, Y. Umakoshi

Acta Materialia　Vol. 51　No. 4　p. 1007-1017　2003/02　Research paper (scientific journal)

Observation of deformation substructure in fatigued intermetallic alloys using magnetic properties

Y Umakoshi, HY Yasuda

DEFECT PROPERTIES AND RELATED PHENOMENA IN INTERMETALLIC ALLOYS　Vol. 753　p. 39-44　2003　Research paper (international conference proceedings)

Effect of antiphase boundary on the pseudoelasticity in Fe3Al single crystals

HY Yasuda, K Nakano, M Ueda, Y Umakoshi

DEFECT PROPERTIES AND RELATED PHENOMENA IN INTERMETALLIC ALLOYS　Vol. 753　p. 279-284　2003　Research paper (international conference proceedings)

Effect of interphase boundary character on mechanical properties in NiAl(beta) bicrystals with Ni3Al(gamma') precipitates along grain boundary

T Sakata, HY Yasuda, Y Umakoshi

DEFECT PROPERTIES AND RELATED PHENOMENA IN INTERMETALLIC ALLOYS　Vol. 753　p. 297-302　2003　Research paper (international conference proceedings)

Texture Development during Dynamic Recrystallization in Hot-deformed Fe-40at%Al Alloy.

T. Sakata, H. Kohma, H. Yasuda, Y. Umakoshi

ISIJ International　Vol. 42　No. 8　p. 903-909　2002/08　Research paper (scientific journal)

Strain-rate effects on superplastic properties of coarse-grained iron aluminides: a microstructural examination

J.P Chu, W Kai, H.Y Yasuda, Y Umakoshi, K Inoue

Materials Science and Engineering: A　Vol. 329-331　p. 878-884　2002/06　Research paper (scientific journal)

Preparation of Porous Hydroxyapatite/&alpha;-Tricalcium Phosphate Composites by a Colloidal Process

Hiroyuki&nbsp, Y. Yasuda, Shigeo Mahara, Naohiro Terashita, Yukichi Umakoshi

MATERIALS TRANSACTIONS　Vol. 43　No. 6　p. 1332-1335　2002/06　Research paper (scientific journal)

Fatigue mechanism in Ni3Fe single crystals with L12 superlattice structure

H.Y. Yasuda, D. Furuta, A. Sasaki, A. Izaki, Y. Umakoshi

Acta Materialia　Vol. 50　No. 10　p. 2715-2724　2002/06　Research paper (scientific journal)

Microstructure Control for Developing Fe-Pd Ferromagnetic Shape Memory Alloys

YASUDA Hiroyuki Y., UMAKOSHI Yukichi

Bulletin of the Japan Institute of Metals　Vol. 41　No. 3　p. 182-185　2002/03/20

Concurrent Design of Multi-Functional Materials using Bicrystal

UMAKOSHI Yukichi, YASUDA Hiroyuki, UEDA Masato, SAKATA Toshiya

Bulletin of the Japan Institute of Metals　Vol. 41　No. 3　p. 178-181　2002/03/20

Preparation of hydroxyapatite/alpha-tricalcium phosphate composites by colloidal process

H. Y. Yasuda, S. Mahara, T. Nishiyama, Y. Umakoshi

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS　Vol. 3　No. 1　p. 29-33　2002/03　Research paper (scientific journal)

Formation of deformation bands and precipitation of Ni 3 Al(γ′) phase in NiAl(β)-based single crystals by thermomechanical processing

T. Sakata, H.Y. Yasuda, Y. Umakoshi

Intermetallics　Vol. 10　No. 2　p. 139-147　2002/02　Research paper (scientific journal)

Preparation of hydroxyapatite-based composites by colloidal process

HY Yasuda, S Mahara, T Nishiyama, N Terashita, Y Umakoshi

TISSUE ENGINEERING FOR THERAPEUTIC USE 6　Vol. 1243　p. 155-160　2002　Research paper (international conference proceedings)

Microstructure control for developing Fe-Pd ferromagnetic shape memory alloys

H.Y. Yasuda, N. Komoto, M. Ueda, Y. Umakoshi

Science and Technology of Advanced Materials　Vol. 3　No. 2　p. 165-169　2002/01　Research paper (scientific journal)

Effect of grain boundary on martensite transformation behaviour in Fe–32 at.%Ni bicrystals

Masato Ueda, Hiroyuki Yasuda, Yukichi Umakoshi

Science and Technology of Advanced Materials　Vol. 3　No. 2　p. 171-179　2002/01　Research paper (scientific journal)

Cyclic deformation behaviour of γ′-Ni3(Al, Ti) single crystal containing disordered γ precipitates

H.Y. Yasuda, R. Jimba, Y. Umakoshi

Acta Materialia　Vol. 50　No. 1　p. 161-169　2002/01　Research paper (scientific journal)

Concurrent design for NiAl-based (β/γ′) two-phase alloys by controlling microstructure and texture

Toshiya Sakata, Hiroyuki Yasuda, Yukichi Umakoshi

Science and Technology of Advanced Materials　Vol. 3　No. 2　p. 157-164　2002/01　Research paper (scientific journal)

Stress-induced martensitic transformation in Fe–Ni bicrystals

M. Ueda, H.Y. Yasuda, Y. Umakoshi

Acta Materialia　Vol. 49　No. 20　p. 4251-4258　2001/12　Research paper (scientific journal)

Control of microstructure and orientation distribution in Ni–Al-based (β/γ′) two phase alloys by thermomechanical processing

T. Sakata, H.Y. Yasuda, Y. Umakoshi

Acta Materialia　Vol. 49　No. 20　p. 4231-4239　2001/12　Research paper (scientific journal)

Microstructure and Mechanical Property of Hydroxyapatite/Calcium-Deficient Hydroxyapatite Composites Prepared by a Colloidal Process

Hiroyuki&nbsp, Y. Yasuda, Shigeo Mahara, Yukichi Umakoshi

MATERIALS TRANSACTIONS　Vol. 42　No. 11　p. 2392-2397　2001/11　Research paper (scientific journal)

Development of Microstructure and Texture in Rapidly Solidified and Annealed Ni-Al Alloys

Toshiya Sakata, Hiroyuki Y. Yasuda, Yukichi Umakoshi

MATERIALS TRANSACTIONS　Vol. 42　No. 11　p. 2382-2385　2001/11　Research paper (scientific journal)

Effect of grain boundary character on the martensitic transformation in Fe–32at.%Ni bicrystals

M Ueda, H.Y Yasuda, Y Umakoshi

Acta Materialia　Vol. 49　No. 17　p. 3421-3432　2001/10　Research paper (scientific journal)

Recrystallization texture in cold-rolled Co3Ti polycrystals

H.Y Yasuda, S Yamamura, Y Umakoshi

Scripta Materialia　Vol. 44　No. 5　p. 765-769　2001/03　Research paper (scientific journal)

Fatigue behavior and magnetic property of Ni3(Al,Ti) single crystals deformed at high temperatures

H.Y Yasuda, A Sasaki, Y Umakoshi, S Takahashi

Scripta Materialia　Vol. 44　No. 4　p. 581-586　2001/03　Research paper (scientific journal)

Control of microstructure and crystal orientation distribution in NiAl-based (beta/gamma') two phase alloys by thermomechanical processing

T Sakata, HY Yasuda, Y Umakoshi

PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II　p. 859-862　2001　Research paper (international conference proceedings)

K-2307 Control of Interface for Developing Fe-Pd Ferromagnetic Shape Memory Alloys

YASUDA Hiroyuki Y., KOUMOTO Naoki, Umakoshi Yukichi

The proceedings of the JSME annual meeting　Vol. 1　p. 561-562　2001

Effect of microstructure on field-induced strain in Fe-Pd ferromagnetic shape memory alloys

HY Yasuda, N Koumoto, Y Umakoshi

PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II　p. 1707-1710　2001　Research paper (international conference proceedings)

Microstructural Evolution in Superplastic Coarse-Grained Fe-27at.%Al: Strain-Rate Effects

J.P. Chu, S.H. Chen, Hiroyuki Y. Yasuda, Yukichi Umakoshi, Kanryu Inoue

Materials Science Forum　Vol. 357-359　p. 205-212　2001/01　Research paper (scientific journal)

Cyclic deformation and deformation substructure in L1<inf>2</inf>-type intermetallic compounds

Umakoshi, Y., Yasuda, H.Y., Sasaki, A., Furuta, D.

International Journal of Materials and Product Technology　No. SPEC. ISS. VOL.1　2001　Research paper (scientific journal)

Magnetic observation of deformation substructure in cyclically deformed Ni3Fe single crystals

Hiroyuki Y. Yasuda, Daizoh Furuta, Akiko Sasaki, Yukichi Umakoshi

Journal of Applied Physics　Vol. 88　No. 10　p. 5909-5914　2000/11/15　Research paper (scientific journal)

Microstructure and mechanical property of synthesized hydroxyapatite prepared by colloidal process

H.Y Yasuda, S Mahara, Y Umakoshi, S Imazato, S Ebisu

Biomaterials　Vol. 21　No. 20　p. 2045-2049　2000/10　Research paper (scientific journal)

Electron backscattered diffraction study on superplastic coarse-grained Fe-27 at.%Al: processing effects

JP Chu, HY Yasuda, Y Umakoshi, K Inoue

INTERMETALLICS　Vol. 8　No. 9-11　p. 1075-1079　2000/09　Research paper (scientific journal)

Formation process of transformation texture from the β to α phase in Cu-42mass%Zn alloy

T Sakata, H.Y Yasuda, Y Umakoshi

Scripta Materialia　Vol. 43　No. 5　p. 411-416　2000/08　Research paper (scientific journal)

Effect of long-range order on the cyclic deformation behaviour of Ni3Fe single crystals

H.Y Yasuda, D Furuta, Y Umakoshi

Acta Materialia　Vol. 48　No. 13　p. 3401-3408　2000/08　Research paper (scientific journal)

Electron backscattered diffraction study on superplastic properties of coarse-grained Fe-27at.% Al based alloys

J. P. Chu, S. H. Chen, H. Y. Yasuda, Y. Umakoshi, K. Inoue

Key Engineering Materials　Vol. 177-180　p. 637-642　2000　Research paper (scientific journal)

Electron backscattered diffraction study on superplastic properties of coarse-grained Fe-27 at% Al

J.P. Chu, J.H. Wu, H.Y. Yasuda, Y. Umakoshi, K. Inoue

Intermetallics　Vol. 8　No. 1　p. 39-46　2000/01　Research paper (scientific journal)

Variant selection in transformation texture from the β to α phase in Cu–40 mass% Zn alloy

H.Y. Yasuda, T. Sakata, Y. Umakoshi

Acta Materialia　Vol. 47　No. 6　p. 1923-1933　1999/04　Research paper (scientific journal)

Fatigue behavior of Fe-48at.%al polycrystals with B2 structure at high temperatures

H.Y Yasuda, A Behgozin, Y Umakoshi

Scripta Materialia　Vol. 40　No. 2　p. 203-207　1998/12　Research paper (scientific journal)

Effect of deformation temperature on fatigue and fracture behavior in TiAl polysynthetically twinned crystals

Y. Umakoshi, H. Y. Yasuda, T. Nakano, K. Ikeda

Metallurgical and Materials Transactions A　Vol. 29　No. 13　p. 943-950　1998/03　Research paper (scientific journal)

Fatigue, Cyclic Deformation and Microstructure. Effect of V and Nb Addition on the Fatigue Behaviour of TiAl Polysynthetically Twinned Crystals.

Hiroyuki Y. Yasuda, Takayoshi Nakano, Jun Nakazawa, Yukichi Umakoshi

ISIJ International　Vol. 37　No. 12　p. 1210-1217　1997/12　Research paper (scientific journal)

Anomalous behaviour of cyclic deformation and fatigue properties of TiAl PST crystals under constant applied stress

T. Nakano, H.Y. Yasuda, N. Higashitanaka, Y. Umakoshi

Acta Materialia　Vol. 45　No. 11　p. 4807-4821　1997/11　Research paper (scientific journal)

Fatigue and Fracture Behaviour of TiAl alloys

H. Y. Yasuda, T. Nakano, Y. Umakoshi

Proceedings of Osaka University-University of Nottingham Joint Symposium, pp.140　1997/09　Research paper (international conference proceedings)

The tensile creep behavior of superplastic tetragonal zirconia doped with small amounts of SiO2

K. Hiraga, H.Y. Yasuda, Y. Sakka

Materials Science and Engineering: A　Vol. 234-236　p. 1026-1029　1997/08　Research paper (scientific journal)

Cavity damage accumulation and fracture in SiO2-doped zirconia during superplastic deformation

H.Y. Yasuda, K. Hiraga

Materials Science and Engineering: A　Vol. 234-236　p. 343-346　1997/08　Research paper (scientific journal)

Decomposition of [011]superlattice dislocations in cyclically deformed TiAl polysynthetically twinned crystals

H.Y. Yasuda, T. Nakano, Y. Umakoshi

Philosophical Magazine Letters　Vol. 73　No. 5　p. 225-232　1996/05　Research paper (scientific journal)

The deformation substructure in cyclically deformed TiAl PST crystals

H. Y. Yasuda, T. Nakano, Y. Umakoshi

Philosophical Magazine A　Vol. 73　No. 4　p. 1035-1051　1996/04　Research paper (scientific journal)

Effect of lamellar structure and plastic anisotropy on the cyclic deformation and fatigue behaviour of TiAl PST crystals

H. Y. Yasuda, T. Nakano, Y. Umakoshi

Philosophical Magazine A　Vol. 73　No. 4　p. 1053-1067　1996/04　Research paper (scientific journal)

Fatigue Behavior and Fracture Mechanizm of Intermetallics -- The Role of Lamellar Structure on the Fatigue Behavior of TiAl-PST Crystals --

Hiroyuki Y. Yasuda, Takayoshi Nakano, Yukichi Umakoshi

1996/01

Thermal stability of deformation substructure of cyclically deformed TiAl PST crystals

H.Y. Yasuda, T. Nakano, Y. Umakoshi

Intermetallics　Vol. 4　No. 4　p. 289-298　1996/01　Research paper (scientific journal)

Plastic anisotropy and fatigue of TiAl PST crystals: a review

Y. Umakoshi, H.Y. Yasuda, T. Nakano

Intermetallics　Vol. 4　p. S65-S75　1996/01　Research paper (scientific journal)

Deformation and fracture of TiAl PST crystals under monotonic and cyclic loading

Umakshi, Y., Nakano, T., Yasuda, H.Y.

Acta Metallurgica Sinica Series A, Physical Metallurgy &amp; Materials Science　Vol. 8　No. 4-6　p. 329-338　1995/08　Research paper (scientific journal)

Effect of lamellar structure on fracture behavior of TiAl polysynthetically twinned crystals

T. Nakano, T. Kawanaka, H.Y. Yasuda, Y. Umakoshi

Materials Science and Engineering: A　Vol. 194　No. 1　p. 43-51　1995/04　Research paper (scientific journal)

Plastic anisotropy and fracture behavior of cyclically deformed TiAl polysynthetically twinned crystals

Y. Umakoshi, H.Y. Yasuda, T. Nakano

Materials Science and Engineering: A　Vol. 192-193　p. 511-517　1995/02　Research paper (scientific journal)

Cyclic deformation behaviour of Ti-Al alloys containing oriented lamellae

Yasuda, H.Y., Nakano, T., Umakoshi, Y.

Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties　Vol. 71　No. 1　1995　Research paper (scientific journal)

Fatigue behaviour of TiAl intermetallic compounds

NAKANO Takayoshi, Hiroyuki Yasuda, Yukichi Umakoshi

Vol. 80　No. 9　p. Np469-471　1994/09

THE EFFECT OF ORIENTATION AND LAMELLAR STRUCTURE ON THE FATIGUE BEHAVIOUR OF TIAL PST CRYSTALS

Y UMAKOSHI, HY YASUDA, Y NAKANO

STRENGTH OF MATERIALS　p. 345-348　1994　Research paper (international conference proceedings)

Fracture Behaviour of TiAl Crystals Containing Oriented Lamellae

T. Nakano, K. Kawanaka, H. Y. Yasuda, Y. Umakoshi

Proceedings of 3rd Japan International SAMPE Symposium, pp.1334　1993/12　Research paper (international conference proceedings)

Cyclic Deformation and Fatigue Behaviour of TiAl Crystals Containing Oriented Lamellae

Y. Umakoshi, H. Y. Yasuda, T. Nakano

Proceedings of 3rd Japanese International SAMPE symposium, pp.1329　1993/12　Research paper (international conference proceedings)