日本金属学会

2000.6

Te Zhu, Zhi‑Hong Zhong, Koichi Sato, Ya‑Min Song, Feng‑Jiao Ye, Qian‑Qian Wang, Ye Dong, Peng Zhang, Run‑Sheng Yu, Bao‑Yi Wang, Alfonso H. W. Ngan, Xing‑Zhong Cao, Qiu Xu .  Effects of hydrogen charging and deformation on tensile properties of a multi‑component alloy for nuclear applications .  Tungsten4   212 - 218   2022.5Effects of hydrogen charging and deformation on tensile properties of a multi‑component alloy for nuclear applicationsReviewed International coauthorship

M. Hatakeyama, T. Yamamoto, K. Yasuda, S. Matsumura, K. Yasunaga, K. Sato .  In-situ observation of damage structure in Cu-Cr-Zr and Cu-Cr alloy during 1.25 MeV electron irradiation .  Nuclear Materials and Energy30   101144   2022.3In-situ observation of damage structure in Cu-Cr-Zr and Cu-Cr alloy during 1.25 MeV electron irradiationReviewed

Koichi Sato, Ryuta Kasada, Atsushi Kiyohara, Masashi Hirabaru, Kenichi Nakano, Kiyohiro Yabuuchi, Masahiko Hatakeyama, Qiu Xu .  Change in nanoindentation hardness of polycrystalline tungsten irradiated with Fe ions or electrons by hydrogen gas charging .  Journal of Nuclear Materials560   153483   2022.3Change in nanoindentation hardness of polycrystalline tungsten irradiated with Fe ions or electrons by hydrogen gas chargingReviewed

Eiichi Wakai, Yosuke Iwamoto, Tamaki Shibayama, Koichi Sato, Kodai Toyota, Takashi Onizawa, Takashi Wakui, Taku Ishida, Shunsuke Makimura, Yuki Nakagawa and Hiroyuki Noto .  Development of Innovative Materials and Measurement Systems used for Radiation Environment .  Research & Development in Material Science14   RDMS.00089   2022.2Development of Innovative Materials and Measurement Systems used for Radiation EnvironmentReviewed

Hirokazu Sato, Nozomu Adachi, Yoshikazu Todaka, Tomohiko Omura, Koichi Sato .  Promotion Effect of Hydrogen on Grain Refinement in Pure Fe by High-Pressure Torsion-Straining .  Metallurgical and Materials Transactions A52A   4749 - 4752   2021.11Promotion Effect of Hydrogen on Grain Refinement in Pure Fe by High-Pressure Torsion-StrainingReviewed

Q. Xu, K. Murotani, L.M. Luo, K. Sato, H. Tsuchida .  Effects of Mo/Zr addition on deuterium retention in W-Y2O3 alloys .  Journal of Nuclear Materials555   153141   2021.6Effects of Mo/Zr addition on deuterium retention in W-Y2O3 alloysReviewed International coauthorship

Koichi Sato, Yohei Kondo, Masakiyo Ohta, Qiu Xu, Atsushi Yabuuchi, Atsushi Kinomura, Masahira Onoue, Takashi Onitsuka, Masahiko Hatakeyama, Hirotomo Iwakiri, Daiji Kato, Yoshiyuki Watanabe, Hiroyasu Tanigawa .  Change in the positron annihilation lifetime of vacancy clusters containing hydrogen atoms in electron-irradiated F82H .  Materials Science Forum1024   71 - 78   2021.3Change in the positron annihilation lifetime of vacancy clusters containing hydrogen atoms in electron-irradiated F82HReviewed

Takuya Kamimura, Hayato Yamashita, Koichi Sato, Tsunakazu Ohyama, Yoshinori Kimoto, Qiu Xu, Shin-ichi Komazaki .  Comparison of hydrogen thermal desorption analysis curves of electron-irradiated F82H and creep-ruptured pure Fe obtained by experiments and simulations .  Materials Science Forum1024   135 - 144   2021.3Comparison of hydrogen thermal desorption analysis curves of electron-irradiated F82H and creep-ruptured pure Fe obtained by experiments and simulationsReviewed

KOMAZAKI Shin-ichi, OHYAMA Tsunakazu, SATO Koichi, TANIGAWA Hiroyasu, NOZAWA Takashi, HAMAGUCHI Dai, WATANABE Yoshiyuki .  Change in Hydrogen Thermal Desorption Characteristic of Reduced Activation Ferritic/Martensitic Steel with Creep .  Journal of the Society of Materials Science, Japan70 ( 2 ) 140 - 146   2021.2

Eiichi Wakai, Shigeru Takaya, Yoshinori Matsui, Yuji Nagae, Shoichi Kato, Tomoaki Suzudo, Masataka Yamaguchi, Kazumi Aoto, Shuhei Nogami, Akira Hasegawa, Hiroaki Abe, Koichi Sato, Taku Ishida, Shunsuke Makimura, Patrick G. Hurh, Kavin Ammigan, David J. Senor, Andrew M. Casella, Danny J. Edwards .  Irradiation damages of structural materials under different irradiation environments .  Journal of Nuclear Materials543   152503   2021.1Irradiation damages of structural materials under different irradiation environmentsInvited Reviewed

Sato Toyoto, Haiwen LI, Kondo Ryota, Sato Koichi, Tanaka Hideaki, Miyazaki Hidetoshi, Yoshiya Masato .  Preface to the Special Issue on Challenging of a New Materials Science of Hydrogen (Hydrogenomics) .  Materia Japan60 ( 3 ) 151 - 151   2021

Yoshiyuki Watanabe, Hirotomo Iwakiri, Norihiko Murayoshi, Daiji Kato, Koichi Sato, Hiroyasu Tanigawa .  Hydrogen retention behavior of primary precipitates in F82H steel: Atomistic calculation based on the density functional theory .  Fusion Engineering and Design159   111788   2020.10Hydrogen retention behavior of primary precipitates in F82H steel: Atomistic calculation based on the density functional theoryInvited Reviewed

Q. Xu, L.M. Luo, Z. Chen, M. Hirakawa, M. Miyamoto, H.Y. Chen, K. Sato, H. Tsuchida .  D2 retention behavior and microstructural evolution of W-2wt.%Y2O3 alloy during He-ion irradiation at high temperatures .  Journal of Nuclear Materials539   152273   2020.10D2 retention behavior and microstructural evolution of W-2wt.%Y2O3 alloy during He-ion irradiation at high temperaturesInvited Reviewed

K. Sato, Y. Kondo, M. Ohta, A. Hirosako, M. Onoue, M. Hatakeyama, S. Sunada, Q. Xu .  Change in the positron annihilation lifetime of vacancies containing hydrogen atoms in electron-irradiated tungsten .  JPS Conference Proceedings, Proceedings of the 14th International Workshop Spallation Materials Technology28   061001   2020.2Change in the positron annihilation lifetime of vacancies containing hydrogen atoms in electron-irradiated tungstenReviewed

A. Yabuuchi, R. Naka, K. Sato, Q. Xu, A. Kinomura .  Slow-positron beamline temperature rise reduction at Kyoto University Research Reactor .  Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms461   137 - 141   2019.12Slow-positron beamline temperature rise reduction at Kyoto University Research ReactorInvited Reviewed

Tsubasa Kumamoto, Motomichi Koyama, Koichi Sato, Kaneaki Tsuzaki .  Evolution of quasi-brittle hydrogen-assisted damages in a dual-phase steel .  Materials Transactions60 ( 11 ) 2368 - 2377   2019.11Evolution of quasi-brittle hydrogen-assisted damages in a dual-phase steelInvited Reviewed

R. Kasada, K. Sato .  Positron annihilation study on the phase transition of thermally aged Fe-Cr binary alloys at 748K .  Philosophical Magazine Letters99   360 - 371   2019.11Positron annihilation study on the phase transition of thermally aged Fe-Cr binary alloys at 748KReviewed

Yusuke Shimada, Masahiko Hatakeyama, Jyunichi Hirabayashi, Yuichi Yamamoto, Koichi Sato, Satoshi Sunada .  Effects of Sigma Phase on the Embrittlement Behavior of Super Duplex Stainless Steel F55 under SSRT with a Cathodic Charge .  Materials Transactions60 ( 11 ) 2378 - 2386   2019.11Effects of Sigma Phase on the Embrittlement Behavior of Super Duplex Stainless Steel F55 under SSRT with a Cathodic ChargeInvited Reviewed

Tsubasa Kumamoto, Motomichi Koyama, Koichi Sato, Kaneaki Tsuzaki .  Strain-rate sensitivity of hydrogen-assisted damage evolution and failure in dual-phase steel: from vacancy to micrometer-scale void growth .  Engineering Fracture Mechanics216   106513   2019.7Strain-rate sensitivity of hydrogen-assisted damage evolution and failure in dual-phase steel: from vacancy to micrometer-scale void growthInvited Reviewed

HIROSE Ryu, MORI Hiroaki, KATO Taichiro, SAKASEGAWA Hideo, HIROSE Takanori, TANIGAWA Hiroyasu, SATO Koichi .  Evaluation of Lattice Defects' Ratio in Laser Beam Welds of Reduced Activation Ferritic/martensitic Steel F82H Using Positron Annihilation Method .  Preprints of the National Meeting of JWS2019 ( 0 ) 66 - 67   2019

Kumamoto Tsubasa, Koyama Motomichi, Sato Koichi, Tsuzaki Kaneaki .  Evolution of Quasi-Brittle Hydrogen-Assisted Damages in a Dual-Phase Steel .  Journal of the Japan Institute of Metals and Materials83 ( 7 ) 221 - 230   2019

K. Sato, H. Yamashita, A. Hirosako, S. Komazaki, Q. Xu, M. Onoue, R. Kasada, K. Yabuuchi, A. Kimura .  Investigation of mechanical properties of stress-relieved and electron-irradiated tungsten after hydrogen charging .  Nuclear Materials and Energy17   29 - 33   2018.12Investigation of mechanical properties of stress-relieved and electron-irradiated tungsten after hydrogen chargingReviewed

Satoshi Sunada, Yoshitaka Matsui, Syogo Takeuchi, Taku Iwaoka, Koichi Sato, Masahiko Hatakeyama .  Effect of Sn, Zn and Bi Addition on Corrosion Characteristics of Magnesium Alloys Sintered by Spark Plasma Sintering .  Materials Science Forum941   1760 - 1765   2018.12Effect of Sn, Zn and Bi Addition on Corrosion Characteristics of Magnesium Alloys Sintered by Spark Plasma SinteringInvited Reviewed

Q. Xu, T. Yokotani, T. Onitsuka, K. Sato .  Correlation between mechanical properties and Cu precipitates induced by neutron irradiation of Fe Cu alloys .  Journal of Nuclear Materials512   314 - 319   2018.12Correlation between mechanical properties and Cu precipitates induced by neutron irradiation of Fe Cu alloysInvited Reviewed

Y. Noshita, K. Sato, H. Yamashita, R. Kasada, Q. Xu, M. Hatakeyama, S. Sunada .  Detection of phase separation of neutron-irradiated Fe–Cr binary alloys using positron annihilation spectroscopy .  Nuclear Materials and Energy15   175 - 179   2018.5Detection of phase separation of neutron-irradiated Fe–Cr binary alloys using positron annihilation spectroscopyReviewed

T. Toyama, K. Ami, K. Inoue, Y. Nagai, K. Sato, Q. Xu, Y. Hatano .  Deuterium trapping at vacancy clusters in electron/neutron-irradiated tungsten studied by positron annihilation spectroscopy .  Journal of Nuclear Materials499   464 - 470   2017.11Deuterium trapping at vacancy clusters in electron/neutron-irradiated tungsten studied by positron annihilation spectroscopyInvited Reviewed

Koichi Sato, Akira Hirosako, Kazuki Ishibashi, Yuto Miura, Qiu Xu, Masahira Onoue, Yasuo Fukutoku, Takashi Onitsuka, Masahiko Hatakeyama, Satoshi Sunada and Toshimasa Yoshiie .  Quantitative evaluation of hydrogen atoms trapped at single vacancies in tungsten using positron annihilation lifetime measurements: Experiments and theoretical calculations .  Journal of Nuclear Materials496   9 - 17   2017.9Quantitative evaluation of hydrogen atoms trapped at single vacancies in tungsten using positron annihilation lifetime measurements: Experiments and theoretical calculationsReviewed

K. Sato, Q. Xu and T. Yoshiie .  Simulation of the effect of volume size factor of solute atoms and their clusters on one dimensional motion of interstitial clusters in Ni binary alloys .  Computational Materials Science132   1 - 5   2017.2Simulation of the effect of volume size factor of solute atoms and their clusters on one dimensional motion of interstitial clusters in Ni binary alloysReviewed

A. Yabuuchi, A. Kinomura, Y. Kuzuya, K. Sato, Q. Xu, N. Oshima and B.E. O’Rourke .  Evaluation of a positron-beam-pulsing system in KUR reactor-based positron beam facility .  Journal of Physics: Conference Series   2017Evaluation of a positron-beam-pulsing system in KUR reactor-based positron beam facilityInvited Reviewed

Yoshihiro Kuzuya, Nagayasu Oshima, Atsushi Kinomura, Atsushi Yabuuchi, Koichi Sato and Qiu Xu .  Evaluation of the optical performance of a brightness enhancement system developed for the KUR slow positron beamline .  Journal of Physics: Conference Series791   012013   2017Evaluation of the optical performance of a brightness enhancement system developed for the KUR slow positron beamlineInvited Reviewed

K. Sato, R. Tamiya, Q. Xu, H. Tsuchida and T. Yoshiie .  Detection of Deuterium Trapping Sites in Tungsten by Thermal Desorption Spectroscopy and Positron Annihilation Spectroscopy .  Nuclear Materials and Energy9   554 - 559   2016.12Detection of Deuterium Trapping Sites in Tungsten by Thermal Desorption Spectroscopy and Positron Annihilation SpectroscopyReviewed

Q. Xu, T. Yokotani, K. Sato and F. Hori .  Electrical resistivity measurement of Fe-0.6%Cu alloy irradiated by neutrons at 14-19 K .  Journal of Nuclear Materials481   176 - 180   2016.12Electrical resistivity measurement of Fe-0.6%Cu alloy irradiated by neutrons at 14-19 KInvited Reviewed

山下勇人、駒崎慎一、佐藤紘一、木村一弘 .  水素昇温脱離分析法によるフェライト系耐熱ステンレス鋼のクリープ損傷評価 .  鉄と鋼102   630 - 637   2016.11水素昇温脱離分析法によるフェライト系耐熱ステンレス鋼のクリープ損傷評価Invited Reviewed

Q. Xu, K. Fukumoto, Y. Ishi, Y. Kuriyama, T. Uesugi, K. Sato, Y. Mori and T. Yoshiie .  Irradiation damage from low-dose high-energy protons on mechanical properties and positron annihilation lifetimes of Fe-9Cr alloy .  Journal of Nuclear Materials468   260 - 263   2016.1Irradiation damage from low-dose high-energy protons on mechanical properties and positron annihilation lifetimes of Fe-9Cr alloyInvited Reviewed

K. Sato, K. Ikemura, V. Krsjak, C. Vieh, R. Brun, Q. Xu, T. Yoshiie, and Y. Dai .  Defect structures of F82H irradiated at SINQ using positron annihilation spectroscopy .  Journal of Nuclear Materials468   281 - 284   2016.1Defect structures of F82H irradiated at SINQ using positron annihilation spectroscopyReviewed

K. Sato, S. Ishioka, Q Xu, T. Yoshiie, H Tsuchida, and A. Itoh .  Ni Ion Damage Structures and Hardness Changes in Austenitic Stainless Steels and their Model Alloys .  Journal of Physics: Conference Series674   012009   2016.1Ni Ion Damage Structures and Hardness Changes in Austenitic Stainless Steels and their Model AlloysReviewed

T. Yoshiie, Y. Satoh, S.S. Huang, M. Horiki, K. Sato and Q. Xu .  Subcascade formation ratio in neutron-irradiated stainless steels .  Journal of Physics: Conference Series674   281 - 284   2016.1Subcascade formation ratio in neutron-irradiated stainless steelsInvited Reviewed

Toshimasa Yoshiie, Koichi Sato, Qiu Xu, Yasuyoshi Nagai .  Reaction kinetic analysis of reactor surveillance data .  Nuclear Instruments and Methods in Physics Research B352   125 - 129   2015.6Reaction kinetic analysis of reactor surveillance dataInvited Reviewed

Masafumi Akiyoshi, Ikuji Takagi, Toshimasa Yoshiie, Qiu Xu, Koichi Sato and Toyohiko Yano .  Effect of annealing on thermal diffusivity in ceramics irradiated by electrons and neutrons .  Energy Procedia71   320 - 327   2015.5Effect of annealing on thermal diffusivity in ceramics irradiated by electrons and neutronsInvited Reviewed

Masafumi Akiyoshi, Ikuji Takagi, Toshimasa Yoshiie, Qiu Xu, Koichi Sato and Toyohiko Yano .  Effect of annealing on thermal diffusivity in ceramics irradiated by electrons and neutrons .  Energy Procedia71   320 - 327   2015.5Effect of annealing on thermal diffusivity in ceramics irradiated by electrons and neutronsInvited Reviewed

Y. Ohkubo, A. Taniguchi, Q. Xu, M. Tanigaki and K. Sato .  TDPAC studies of interaction between He and A = 140 elements in Fe .  Hyperfine Interactions230   187 - 193   2015.4TDPAC studies of interaction between He and A = 140 elements in FeReviewed

V. Krsjak, J. Kuriplach, T.L. Shen, V. Sabelova, K. Sato and Y. Dai .  Helium behavior in ferritic/martensitic steels irradiated in spallation target .  Journal of Nuclear Materials456   382 - 388   2015.1Helium behavior in ferritic/martensitic steels irradiated in spallation targetReviewed

S.S. Huang, S. Kitao, Y. Kobayashi, T. Yoshiie, Q. Xu, K. Sato and M. Seto .  Study of neutron irradiation on F82H alloys by Mossbauer spectroscopy .  Journal of Nuclear Materials456   266 - 271   2015.1Study of neutron irradiation on F82H alloys by Mossbauer spectroscopyReviewed

T. Yoshiie, Y. Ishi, Y. Kuriyama, Y. Mori, K. Sato, T. Uesugi and Q. Xu .  Target depth dependence of damage rate in metals by 150 MeV proton irradiation .  Nuclear Instruments and Methods in Physics Research B342   166 - 169   2015.1Target depth dependence of damage rate in metals by 150 MeV proton irradiationReviewed

K. Sato, Q. Xu, T. Yoshiie, T. Sano, H. Kawabe, Y. Nagai, K. Nagumo, K. Inoue, T. Toyama, N. Oshima, A. Kinomura and Y. Shirai .  Development of a mono-energetic positron beam line at the Kyoto University Research Reactor .  Nuclear Instruments and Methods in Physics Research B342   104 - 107   2015.1Development of a mono-energetic positron beam line at the Kyoto University Research ReactorReviewed

Y. Ohkubo, A. Taniguchi, Q. Xu, M. Tanigaki and K. Sato .  Studies of interaction between He and elements with mass number 140 in Fe by time-differential perturbed-angular-correlation measurements .  Philosophical Magazine Letters94   470 - 477   2014.8Studies of interaction between He and elements with mass number 140 in Fe by time-differential perturbed-angular-correlation measurementsReviewed

Q. Xu, Y. Sugiura, X.Q. Pan, K. Sato and T. Yoshiie .  Effects of dislocation-trapped helium on mechanical properties .  Materials Science & Engineering A612   41 - 45   2014.8Effects of dislocation-trapped helium on mechanical propertiesReviewed

A. Kinomura, T. Yoshiie, A. Chayahara, Y. Mokuno, N. Tsubouchi, Y. Horino, Q. Xu, K. Sato, K. Yasuda and R. Ishigami .  Neutron-enhanced annealing of ion-implantation induced damage in silicon heated by nuclear reactions .  Nuclear Instruments and Methods in Physics Research B334   48 - 51   2014.6Neutron-enhanced annealing of ion-implantation induced damage in silicon heated by nuclear reactionsReviewed

S.S. Huang, K. Sato, Q. Xu, T. Yoshiie, H. Tsuchida and A. Itoh .  Positron annihilation and TEM studies on ion irradiated Fe and Fe-Cr model alloys of ferritic/martensitic steel .  Journal of Nuclear Materials455   122 - 125   2014.6Positron annihilation and TEM studies on ion irradiated Fe and Fe-Cr model alloys of ferritic/martensitic steelReviewed

T. Yoshiie, K. Fukumoto, Y. Ishi, D. Ito, Y. Kuriyama, T. Misawa, Y. Mori, T. Nagasaka, K. Nakajima, Y. Oki, C.H. Pyeon, Y. Saito, K. Sato, X.Z. Shen, S. Shibata, T. Uesugi, Q. Xu .  Studies on ADS as a neutron source at the Kyoto University Research Reactor Institute .  Journal of Nuclear Materials450   16 - 19   2014.5Studies on ADS as a neutron source at the Kyoto University Research Reactor InstituteReviewed

Koichi Sato, Shota Kawamoto, Kimitaka Ikemura, Vladimir Krsjak, Christiane Vieh, Roger Brun, Qiu Xu, Toshimasa Yoshiie and Yong Dai .  Positron annihilation spectroscopy of ferritic/martensitic steels F82H and T91 irradiated with protons and neutrons at PSI .  Journal of Nuclear Materials450   59 - 63   2014.5Positron annihilation spectroscopy of ferritic/martensitic steels F82H and T91 irradiated with protons and neutrons at PSIReviewed

Q. Xu, K. Sato, T. Yoshiie, T. Sano, H. Kawabe, Y. Nagai, K. Nagumo, K. Inoue, T. Toyama, N. Oshima, A. Kinomura and Y. Shirai .  Positron beam facility at Kyoto University Research Reactor .  Journal of Physics: Conference Series505   12030   2014.4Positron beam facility at Kyoto University Research ReactorReviewed

K. Sato, Q. Xu, X.Z. Cao, P. Zhang, B.Y. Wang and H. Tsuchida .  Formation of Cu precipitates in a high-energy-particle-irradiated and thermally aged Fe-0.6%Cu alloy .  Journal of Physics: Conference Series505   12011   2014.4Formation of Cu precipitates in a high-energy-particle-irradiated and thermally aged Fe-0.6%Cu alloyReviewed

S.S. Huang, X.Q. Pan, K. Sato, Q. Xu and T. Yoshiie .  Early stage irradiation effects in F82H model alloys .  Journal of Nuclear Materials449   248 - 251   2014.4Early stage irradiation effects in F82H model alloysReviewed

N. Liu, J. Huang, K. Sato, Q. Xu, L.Q. Shi and Y.X. Wang .  Hydrogen trapping under the effect of W-C mixed layers .  Nuclear Fusion54   33013   2014.3Hydrogen trapping under the effect of W-C mixed layersReviewed

Toshimasa Yoshiie. Koichi Sato, Qiu Xu, Yoshihiro Ishi, Tomonori Uesugi, Yasutoshi Kuriyama and Yoshiharu Mori .  Comparison between In-Situ and Post-Irradiation Cyclic Deformation Structures in Ni by 150MeV Proton Irradiation .  Materials Transactions55   434 - 437   2014.3Comparison between In-Situ and Post-Irradiation Cyclic Deformation Structures in Ni by 150MeV Proton IrradiationReviewed

Q. Xu, H. Yamasaki, Y. Sugiura, K. Sato and T. Yoshiie .  Effects of Interactions between Dislocations and/or Vacancies and He Atoms on Mechanical Property Changes in Ni .  Materials Science & Engineering A586   231 - 235   2013.12Effects of Interactions between Dislocations and/or Vacancies and He Atoms on Mechanical Property Changes in NiReviewed

Qiu Xu, Koichi Sato, Xingzhong Cao, P Zhang, B.Y. Wang, Toshimasa Yoshiie, Hideo Watanabe and Naoaki Yoshida .  Interaction of deuterium with vacancies induced by ion irradiation in W .  Nuclear Instruments and Methods in Physics Research B315   146 - 148   2013.12Interaction of deuterium with vacancies induced by ion irradiation in WReviewed

Mikio Horiki, Toshimasa Yoshiie, Shaosong Huang, Koichi Sato, Xingzhong Cao, Qiu Xu and Toroyo D. Troev .  Effects of alloying elements on defect structures in the incubation period for void swelling in austenitic stainless steels .  Journal of Nuclear Materials442   S813 - S816   2013.11Effects of alloying elements on defect structures in the incubation period for void swelling in austenitic stainless steelsReviewed

Koichi Sato, Xingzhong Cao, Toshimasa Yoshiie, Qiu Xu, Chuzo Kutsukake and Chikara Konno .  Microstructure of Ni fatigued under neutron irradiation .  Journal of Nuclear Materials442   S805 - S808   2013.11Microstructure of Ni fatigued under neutron irradiationReviewed

Koichi Sato, Qiu Xu and Toshimasa Yoshiie .  Effects of Sn on defect structures in high-speed deformed Ni-Sn alloy .  Philosophical Magazine Letters93   567 - 574   2013.10Effects of Sn on defect structures in high-speed deformed Ni-Sn alloyReviewed

Shaosong Huang, Toshimasa Yoshiie, Qiu Xu, Koichi Sato and Troyo D. Troev .  Positron annihilation studies of electron-irradiated F82H model alloys .  Journal of Nuclear Materials440   617 - 621   2013.9Positron annihilation studies of electron-irradiated F82H model alloysReviewed

Qiu Xu, Koichi Sato and Toshimasa Yoshiie .  Investigation of the interaction of He and D in FeBSi alloy .  Philosophical Magazine Letters93   560 - 565   2013.9Investigation of the interaction of He and D in FeBSi alloyReviewed

Koichi Sato, Qiu Xu, Dai Hamaguchi, Shaosong Huang, Toshimasa Yoshiie .  Vacancy migration process in F82H and Fe-Cr binary alloy using positron annihilation lifetime measurement .  Journal of Physics: Conference Series443   12031   2013.6Vacancy migration process in F82H and Fe-Cr binary alloy using positron annihilation lifetime measurementReviewed

N. Onodera, A. Ishii, A. Iwase, Y. Yokoyama, K. Sato, Q. Xu, T. Yoshiie and F. Hori .  Positron annihilation study of free volume in electron irradiated Zr50Cu40Al10 bulk glassy alloy: Effects of thermal relaxation before irradiation .  Journal of Physics: Conference Series443   12022   2013.6Positron annihilation study of free volume in electron irradiated Zr50Cu40Al10 bulk glassy alloy: Effects of thermal relaxation before irradiationReviewed

Toshimasa Yoshiie, Qiu Xu and Koichi Sato .  Reaction kinetic analysis of damage rate effects on defect structural evolution in Fe-Cu .  Nuclear Instruments and Methods in Physics Research B303   37 - 41   2013.5Reaction kinetic analysis of damage rate effects on defect structural evolution in Fe-CuReviewed

Mikio Horiki, Toshimasa Yoshiie, Koichi Sato and Qiu Xu .  Point defect processes in neutron irradiated Ni, Fe-15Cr-16Ni and Ti-added modified SUS316SS .  Philosophical Magazine93   1701 - 1714   2013.1Point defect processes in neutron irradiated Ni, Fe-15Cr-16Ni and Ti-added modified SUS316SSReviewed

Noriko Nitta, Tokiya Hasegawa, Hidehiro Yasuda, Koichi Sato, Toshimasda Yoshiie, Masafumi Taniwaki and Akimitsu Hatta .  Beam flux dependence of ion-irradiation-induced porous structures in III-V compound semiconductors .  Radiation Effects and Defects in Solids168   247 - 252   2013.1Beam flux dependence of ion-irradiation-induced porous structures in III-V compound semiconductorsReviewed

Qiu Xu, Xingzhong Cao, Koichi Sato and Toshimasa Yoshiie .  Effects of alloying elements on thermal desorption of helium in Ni alloys .  Journal of Nuclear Materials431   57 - 59   2012.12Effects of alloying elements on thermal desorption of helium in Ni alloysReviewed

Koichi Sato, Qiu Xu, Toshimasa Yoshiie, Yong Dai and Kenji Kikuchi .  Positron annihilation lifetime measurements of austenitic stainless and ferritic/martensitic steels irradiated in the SINQ target irradiation program .  Journal of Nuclear Materials431   52 - 56   2012.12Positron annihilation lifetime measurements of austenitic stainless and ferritic/martensitic steels irradiated in the SINQ target irradiation programReviewed

Toshimasa Yoshiie, Koichi Sato, Xingzhong Cao, Qiu Xu, Mikio Horiki and Toroyo D. Troev .  Defect structures before steady-state void growth in austenitic stainless steels .  Journal of Nuclear Materials429   185 - 189   2012.10Defect structures before steady-state void growth in austenitic stainless steelsReviewed

Qiu Xu, Koichi Sato and Toshimasa Yoshiie .  Nucleation of He bubbles in amorphous FeBSi alloy irradiated with He ions .  Philosophical Magazine Letters92   527 - 533   2012.10Nucleation of He bubbles in amorphous FeBSi alloy irradiated with He ionsReviewed

Makoto Yoshida, Tatsushi Nakamoto, T. Ogitsu, Qiu Xu, T. Itahashi, Y. Kuno, Y. Kuriyama, Y. Mori, B. Qin, A. Sato, Koichi Sato and Toshimasa Yoshiie .  Low-temperature neutron irradiation tests of superconducting magnet materials using reactor neutrons at KUR .  Advanced in Cryogenic Engineering58   167 - 173   2012.6Low-temperature neutron irradiation tests of superconducting magnet materials using reactor neutrons at KURReviewed

Masafumi Akiyoshi, Hidetsugu Tsuchida, Ikuji Takagi, Toshimasa Yoshiie, Qiu Xu, Koichi Sato and Toyohiko Yano .  Irradiation effects on thermal diffusivity and positron annihilation lifetime in ceramics induced by neutron and 30 MeV electron .  Journal of Nuclear Science and Technology49   595 - 601   2012.6Irradiation effects on thermal diffusivity and positron annihilation lifetime in ceramics induced by neutron and 30 MeV electronReviewed

Qiu Xu, Hiroyuki Yamasaki, Koichi Sato and Toshimasa Yoshiie .  Can helium actually improve the mechanical properties of a metal? .  Philosophical Magazine Letters91   724 - 730   2011.11Can helium actually improve the mechanical properties of a metal?Reviewed

Toshiamasa Yoshiie, Xingzhong Cao, Koichi Sato, Kenji Miyawaki and Qiu Xu .  Point defect processes during incubation period of void growth in austenitic stainless steels, Ti-modified 316SS .  Journal of Nuclear materials417   968 - 971   2011.10Point defect processes during incubation period of void growth in austenitic stainless steels, Ti-modified 316SSReviewed

Koichi Sato, Daiki Itoh, Toshimasa Yoshiie, Qiu Xu, Akihiro Taniguchi and Takeshi Toyama .  Effect of solute atom concentration on vacancy cluster formation in neutron-irradiated Ni alloys .  Journal of Nuclear Materials417   963 - 967   2011.10Effect of solute atom concentration on vacancy cluster formation in neutron-irradiated Ni alloysReviewed

Xingzhong Cao, Qiu Xu, Koichi Sato and Toshimasa Yoshiie .  Effects of dislocations on thermal helium desorption from nickel and iron .  Journal of Nuclear Materials417   1034 - 1037   2011.10Effects of dislocations on thermal helium desorption from nickel and ironReviewed

Q. Xu, Y.X. Wang, Y. Katakabe, H. Iwakiri, N. Yoshida, K. Sato and T. Yoshiie .  Annihilation of interstitial-type dislocation loops in a-Fe during He irradiation .  Journal of Nuclear Materials417   1022 - 1025   2011.10Annihilation of interstitial-type dislocation loops in a-Fe during He irradiationReviewed

T. Yoshiie, T. Ito, H. Iwase, Y. Kaneko, M. Kawai, I. Kishida, S. Kunieda, K. Sato, S. Shimakawa, F. Shimizu, S. Hashimoto, N. Hashimoto, T. Fukahori, Y. Watanabe, Q. Xu and S. Ishino .  Multi-scale modeling of irradiation effects in spallation neutron source materials .  Nuclear Instruments and Methods in Physics Research B269   1740 - 1743   2011.7Multi-scale modeling of irradiation effects in spallation neutron source materialsReviewed

Xingzhong Cao, Qiu Xu, Koichi Sato and Toshimasa Yoshiie .  Thermal desorption of helium from defects in nickel .  Journal of Nuclear Materials412   165 - 169   2011.4Thermal desorption of helium from defects in nickelReviewed

Koichi Sato, Atsushi Kinomura, Takamasa Omura, Qiu Xu, Toshimasa Yoshiie, Ryuta Kasada, Akihiko Kimura and Kazunori Morishita .  Positron annihilation lifetime measurements of He-ionirradiated Fe using pulsed positron beam .  Journal of Physics: Conference Series262   12053   2011.1Positron annihilation lifetime measurements of He-ionirradiated Fe using pulsed positron beamReviewed

Qiu Xu, Xingzhong Cao, Koichi Sato, Takeo Iwai and Toshimasa Yoshiie .  A study of vacancy-type defects in amorphous and crystalline FeBSi alloys after He ion irradiation .  Journal of Physics: Conference Series225   12059   2010.6A study of vacancy-type defects in amorphous and crystalline FeBSi alloys after He ion irradiationReviewed

Koichi Sato, Qiu Xu and Toshimasa Yoshiie .  Positron annihilation coincidence Doppler broadening measurements of irradiated-induced precipitation in Ni-Sn alloys .  Journal of Physics: Conference Series225   12047   2010.6Positron annihilation coincidence Doppler broadening measurements of irradiated-induced precipitation in Ni-Sn alloysReviewed

Toshimasa Yoshiie, Koichi Sato, Qiu Xu, Masao Komatsu, M. Futakawa, T. Naoe and Masayoshi Kawai .  Defect structures in nickel and SUS304SS formed by the collapse of cavitation bubbles .  Journal of Nuclear Materials398   227 - 231   2010.3Defect structures in nickel and SUS304SS formed by the collapse of cavitation bubblesReviewed

Qiu Xu, Xingzhong Cao, Koichi Sato, Kazuhiro Mori and Toshimasa Yoshiie .  Retention and thermal desorption of helium in amorphous and crystalline FeBSi alloys .  Philosophical Magazine Letters90   131 - 137   2010.2Retention and thermal desorption of helium in amorphous and crystalline FeBSi alloysReviewed

Koichi Sato, Takafumi Ihara, Hisashi Sakurai, Toshimasa Yoshiie and Qiu Xu .  Comparison of interaction between Cu precipitate and vacancy in Fe using first-principle calculations and empirical N-body potential calculations .  Computational Materials Science47   521 - 525   2009.12Comparison of interaction between Cu precipitate and vacancy in Fe using first-principle calculations and empirical N-body potential calculationsReviewed

Xingzhong Cao, Qiu Xu, Koichi Sato and Toshimasa Yoshiie .  Migration behavior of vacancies in electron irradiated Fe-Cu alloys .  Physica Status Solidi C6   2355 - 2358   2009.11Migration behavior of vacancies in electron irradiated Fe-Cu alloysReviewed

Toroyo Troev, P. Staikov, E. Popov, N. Nankov, Koichi Sato and Toshimasa Yoshiie .  Positron studies of defects in palladium containing hydrogen .  Physica Status Solidi C6   2316 - 2318   2009.11Positron studies of defects in palladium containing hydrogenReviewed

Toshimasa Yoshiie, Xingzhong Cao, Qiu Xu, Koichi Sato and Troyo D. Troev .  Damage structures in austenitic stainless steels during incubation period of void swelling .  Physica Status Solidi C6   2333 - 2335   2009.11Damage structures in austenitic stainless steels during incubation period of void swellingReviewed

Qiu Xu, Xingzhong Cao, Koichi Sato, Toshimasa Yoshiie and Takeo Iwai .  He bubble formation and emission of He in irradiated Fe .  Physica Status Solidi C6   2336 - 2338   2009.11He bubble formation and emission of He in irradiated FeReviewed

Toshimasa Yoshiie, Koichi Sato and Qiu Xu .  Temperature dependence of dislocation bias factors in metals .  Nuclear Instruments and Methods in Physics Research B267   2971 - 2975   2009.9Temperature dependence of dislocation bias factors in metalsReviewed

Qiu Xu, Koichi Sato and Toshimasa Yoshiie .  Interaction of tritium plasma and defects in tungsten irradiated with neutrons .  Journal of Nuclear Materials390-391   663 - 666   2009.6Interaction of tritium plasma and defects in tungsten irradiated with neutronsReviewed

Chunqing He, Toshimasa Yoshiie, Qiu Xu, Koichi Sato, S. Peneva and Toroyo D. Troev .  Detection of hydrogen in neutron-irradiated nickel using positron lifetime spectroscopy .  Philosophical Magazine89   1183 - 1195   2009.5Detection of hydrogen in neutron-irradiated nickel using positron lifetime spectroscopyReviewed

Qiu Xu, Toshimasa Yoshiie and Koichi Sato .  Effects of hydrogen and helium produced by transmutation reactions on void formation in copper isotopic alloys irradiated with neutrons .  Journal of Nuclear Materials386-388   363 - 366   2009.4Effects of hydrogen and helium produced by transmutation reactions on void formation in copper isotopic alloys irradiated with neutronsReviewed

Koichi Sato, Kazuya Inoue, Toshimasa Yoshiie, Qiu Xu, Eiichi Wakai, Chuzo Kutsukake and Kentaro Ochiai .  Positron annihilation lifetime measurements of vanadium alloy and F82H irradiated with fission and fusion neutrons .  Journal of Nuclear Materials386-388   203 - 205   2009.4Positron annihilation lifetime measurements of vanadium alloy and F82H irradiated with fission and fusion neutronsReviewed

Noriko Nitta, Yukari Ohoka, Koichi Sato, Qiu Xu, Yoshihiko Hayashi, Toshimasa Yoshiie and Masafumi Taniwaki .  Surface sink effects on void formation in GaSb and InSb under ion irradiation .  Materials Transactions49   1546 - 1549   2008.7Surface sink effects on void formation in GaSb and InSb under ion irradiationReviewed

Toshimasa Yoshiie, Qiu Xu, Koichi Sato, Kazumi Kikuchi and Manabu Kawai .  Reaction kinetics analysis of damage evolution in accelerator driven system beam windows .  Journal of Nuclear Materials377   132 - 135   2008.6Reaction kinetics analysis of damage evolution in accelerator driven system beam windowsReviewed

Qiu Xu, Toshimasa Yoshiie and Koichi Sato .  Formation of Cu precipitates and vacancy clusters in neutron-irradiated Fe-Cu alloys .  Philosophical Magazine Letters88   353 - 362   2008.5Formation of Cu precipitates and vacancy clusters in neutron-irradiated Fe-Cu alloysReviewed

Koichi Sato, Katsunori Tsukamoto, Yuki Yamashita, Qiu Xu, Toshimasa Yoshiie and Troyo D. Troev .  Detection of Hydrogen in Vacancies and Voids in Nickel by Positron Annihilation Lifetime Measurement .  Transactions of the Materials Research Society of Japan33   263 - 266   2008.4Detection of Hydrogen in Vacancies and Voids in Nickel by Positron Annihilation Lifetime MeasurementReviewed

Koichi Sato, Mototaka Kai, Kotaro Mitoma, Qiu Xu and Toshimasa Yoshiie .  Detection of formation and annihilation process of point defects produced by three deformation modes using Cu precipitation Behavior in Fe-Cu alloy .  Physica Status Solidi C4   3559 - 3562   2008.4Detection of formation and annihilation process of point defects produced by three deformation modes using Cu precipitation Behavior in Fe-Cu alloy Reviewed

Qiu Xu, Toshimasa Yoshiie and Koichi Sato .  Temperature dependence of Cu precipitation in neutron irradiated Fe-Cu alloys .  Physica Status Solidi C4   3573 - 3576   2007.9Temperature dependence of Cu precipitation in neutron irradiated Fe-Cu alloys Reviewed

Michio Matsushita, Koichi Sato, Toshimasa Yoshiie and Qiu Xu .  Validity of Activation Energy for Vacancy Migration Obtained by Integrating Force-Distance Curve .  Materials Transactions48   2362 - 2364   2007.9Validity of Activation Energy for Vacancy Migration Obtained by Integrating Force-Distance CurveReviewed

Toshimasa Yoshiie, M. Horiki, Qiu Xu and Koichi Sato .  Temperature dependence of one-dimensional motion of interstitial clusters in Fe and Ni .  Journal of Nuclear Materials367   322 - 326   2007.8Temperature dependence of one-dimensional motion of interstitial clusters in Fe and NiReviewed

Koichi Sato, Toshimasa Yoshiie and Qiu Xu .  One Dimensional Motion of Interstitial Clusters in Ni-Au Alloy .  Journal of Nuclear Materials367-370   382 - 385   2007.8One Dimensional Motion of Interstitial Clusters in Ni-Au AlloyReviewed

Koichi Sato, Toshimasa Yoshiie, Toshitaka Ishizaki and Qiu Xu .  Behavior of vacancies near edge dislocations in Ni and Fe: Positron annihilation experiments and rate theory calculations .  Physical Review B75   94109   2007.3Behavior of vacancies near edge dislocations in Ni and Fe: Positron annihilation experiments and rate theory calculationsReviewed

Qiu Xu, Toshimasa Yoshiie and Koichi Sato .  Stability of Cu precipitates in Fe-Cu model alloys irradiated at high temperatures with fission neutrons .  Philosophical Magazine Letters87   65 - 74   2007.1Stability of Cu precipitates in Fe-Cu model alloys irradiated at high temperatures with fission neutronsReviewed

Qiu Xu, Toshitaka Ishizaki, Koichi Sato, Toshimasa Yoshiie and Shinji Nagata .  Coincidence Doppler Broadening of Positron Annihilation Radiation for Detection of Helium in Irradiated Ni and Cu .  Materials Transactions47   2885 - 2887   2006.12Coincidence Doppler Broadening of Positron Annihilation Radiation for Detection of Helium in Irradiated Ni and CuReviewed

Oiu Xu, Toshimasa Yoshiie and Koichi Sato .  Dose dependence of Cu precipitate formation in Fe-Cu model alloys irradiated with fission neutrons .  Physical Review B73   134115   2006.4Dose dependence of Cu precipitate formation in Fe-Cu model alloys irradiated with fission neutrons Reviewed

Koichi Sato, Toshimasa Yoshiie, Qiu Xu, Yuhki Satoh, Eiichi Wakai, Chuzo Kutsukake and Takeo Nishitani .  Point Defect Formation in V-4Cr-4Ti and F82H Irradiated with Fission and Fusion Neutrons .  Materials Transactions46   445 - 449   2005.3Point Defect Formation in V-4Cr-4Ti and F82H Irradiated with Fission and Fusion NeutronsReviewed

Koichi Sato, Toshimasa Yoshiie, Toshitaka Ishizaki and Qiu Xu .  Anisotropic motion of point defects near edge dislocation .  Journal of Nuclear Materials329-333   929 - 932   2004.8Anisotropic motion of point defects near edge dislocationReviewed

Hiroshi Okazawa, Toshimasa Yoshiie, Toshitaka Ishizaki, Koichi Sato, Qiu Xu, Yuhki Satoh, Yoshitaka Ohkubo and Yohichi Kawase .  Detection of interstitial clusters in neutron irradiated Ni-Hf alloy by perturbed angular correlation and positron annihilation lifetime measurements .  Journal of Nuclear Materials329-333   967 - 970   2004.8Detection of interstitial clusters in neutron irradiated Ni-Hf alloy by perturbed angular correlation and positron annihilation lifetime measurementsReviewed

Koichi Sato, Toshimasa Yoshiie, Yuhki Satoh and Qiu Xu .  Computer simulation of formation energy and migration energy of vacancies under high strain in Cu .  Materials Transactions45   833 - 838   2004.3Computer simulation of formation energy and migration energy of vacancies under high strain in CuReviewed

Koichi Sato .  Point Defect Behaviors in Metals under High Strain .      2004.3Point Defect Behaviors in Metals under High Strain

Toshitaka Ishizaki, Toshimasa Yoshiie, Qiu Xu, Koichi Sato and Masao Komatsu .  Comparison of defect structures in Fe-Cu alloys by high-speed and low-speed deformation with the detection of Cu precipitates .  Materials Science Forum445-446   117 - 119   2004.1Comparison of defect structures in Fe-Cu alloys by high-speed and low-speed deformation with the detection of Cu precipitates Reviewed

Chunqing He, Qiu Xu, Toshimasa Yoshiie, Koichi Sato and Troyo D. Troev .  The effect of hydrogen-charging in neutron irradiated Nickel studied by positron annihilation lifetime spectroscopy (PALS) .  Materials Science Forum445-446   105 - 107   2004.1The effect of hydrogen-charging in neutron irradiated Nickel studied by positron annihilation lifetime spectroscopy (PALS)Reviewed

Toshitaka Ishizaki, Toshimasa Yoshiie, Koichi Sato, Seiya Yanagita, Qiu Xu, Masao Komatsu and Michio Kiritani .  Precipitation of Cu in Fe-Cu alloys by high-speed deformation .  Materials Science and Engineering A350   102 - 107   2003.6Precipitation of Cu in Fe-Cu alloys by high-speed deformationReviewed

Koichi Sato, Toshimasa Yoshiie, Yuhki Satoh, Qiu Xu and Michio Kiritani .  Simulation of vacancy migration energy in Cu under high strain .  Materials Science and Engineering A350   220 - 222   2003.6Simulation of vacancy migration energy in Cu under high strainReviewed

Koichi Sato, Toshimasa Yoshiie, Yuhki Satoh, Qiu Xu, Eiichi Kuramoto and Michio Kiritani .  Point defect production under high-internal stress without dislocations in Ni and Cu .  Radiation Effects and Defects in Solids157   171 - 178   2002.1Point defect production under high-internal stress without dislocations in Ni and CuReviewed

S. Hirayama, K. Sato, D. Kato, Y. Watanabe, T. Nozawa   Effect of elastic strain on the stability of vacancy-carbon-hydrogen complexes in α-iron   International conference

20th International Conference on Fusion Reactor Materials (ICFRM-20)  2021.10 

K. Sato, Y. Kondo, M. Ohta, A. Hirosako, M. Onoue, M. Hatakeyama, S. Sunada, Q. Xu   Quantitative estimation of hydrogen atoms trapped at vacancy-type defects in electron-irradiated metals: PAS experiments and simulations   Invited International conference

11th International Conference on the advanced materials (THERMEC'2021)  2021.6 

佐藤紘一、平原雅史、Qiu Xu、薮内敦、木野村淳   金属材料における水素を捕獲した照射欠陥の陽電子寿命値変化  

京都大学複合原子力科研究所専門会「陽電子科学とその理工への応用」  2020.12  京都大学複合原子力科研究所

A. Kiyohara, K. Sato, H. Yamashita, M. Onoue, Q. Xu, K. Yabuuchi, A. Kimura, R. Kasada   Effect of hydrogen on the surface hardness in ion-irradiated tungsten   International conference

19th International Conference on Fusion Reactor Materials 

K. Sato, Y. Kondo, M. Ota, M. Onoue, M. Hatakeyama, S. Sunada, Q. Xu, Y. Watanabe, D. Hamaguchi, H. Tanigawa   Dependence of positron annihilation lifetime of vacancy-type defects on hydrogen atoms   International conference

19th International Conference on Fusion Reactor Materials 

広瀬颯、森裕章、加藤太一郎、酒瀬川英雄、廣瀬貴規、谷川博康、佐藤紘一   陽電子消滅法を用いた低放射化フェライト鋼F82Hのレーザ溶接部における格子欠陥率の評価  

溶接学会　2019年度秋季全国大会  溶接学会

清原篤史、佐藤紘一、山下駿斗、駒崎慎一、徐?、藪内聖皓、笠田竜太、木村晃彦   イオン照射したタングステンの水素チャージによる 表面硬さの変化  

日本金属学会九州支部　学術講演会  日本金属学会九州支部

大田真聖、近藤耀平、駒崎慎一、徐?、薮内敦、木野村淳、畠山賢彦、岩切宏友、加藤太治、渡辺淑之、谷川博康、佐藤紘一   電子線照射した F82H 鋼における水素を捕獲した 原子空孔の陽電子寿命値の変化  

日本金属学会九州支部　学術講演会  日本金属学会九州支部