DU Junping

最終更新日時: 2020/07/29 16:16:27

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氏名(漢字/フリガナ/アルファベット表記)
DU Junping/ドウ ジユンピン/Du, Junping
所属部署・職名(部局/所属/講座等/職名)
学際融合教育研究推進センター/構造材料元素戦略研究拠点ユニット/特定准教授
取得学位
学位名(日本語) 学位名(英語) 大学(日本語) 大学(英語) 取得区分
Ph.D. Central Iron and Steel Research Institute
ORCID ID
https://orcid.org/0000-0003-4585-1573
researchmap URL
https://researchmap.jp/7000018467
研究テーマ
(英語)
Interatomic interaction potentials, Accelerated molecular dynamics, First-principles calculations, Nanoscale-scale modeling in metals, interface phenomena in metals and alloys
研究概要
(英語)
Molecular dynamics (MD) simulation has been widely used in the study of the properties of materials. However, there are two bottlenecks in the application of MD method: the lack of multi-elements potential and the time-scale limitation. My research has centered on the two topics. (1) Ni-based superalloys are composed of nearly ten elements. Because the EAM potentials in the literature are mostly constructed for pure metals and binary alloys, the construction of multi-element EAM potentials is important for simulations concerning the movement of dislocations, crack propagation and alloying effects in the Ni-based single crystal superalloys. Therefore, I have constructed the ternary EAM potentials for the application in Ni-based superalloys. (2) The strain rate in conventional MD simulations (~10^8 s^−1) differs considerably from typical experimental strain rates (~10^−4 s^−1) because of the short timescale of MD simulations. The dislocation nucleation is a thermally activated rate-controlling process at finite temperature and is usually rate-sensitive, so the temperature and strain-rate sensitivities should be carefully studied at realistic timescales. Thus, I accelerated the dislocation nucleation events using an accelerated MD method (the adaptive-boost MD) and study the dislocation nucleation with atomic-level resolution at finite temperature, which offers opportunities for more comprehensive investigation of these processes arising from interfacial defects.
研究分野(キーワード)
キーワード(日本語) キーワード(英語)
Atomistic simulations
論文
著者 著者(日本語) 著者(英語) タイトル タイトル(日本語) タイトル(英語) 書誌情報等 書誌情報等(日本語) 書誌情報等(英語) 出版年月 査読の有無 記述言語 掲載種別 公開
Nobuhiro Tsuji, Shigenobu Ogata, Haruyuki Inui, Isao Tanaka, Kyosuke Kishida, Si Gao, Wenqi Mao, Yu Bai, Ruixiao Zheng, Jun-Ping Du Nobuhiro Tsuji, Shigenobu Ogata, Haruyuki Inui, Isao Tanaka, Kyosuke Kishida, Si Gao, Wenqi Mao, Yu Bai, Ruixiao Zheng, Jun-Ping Du Nobuhiro Tsuji, Shigenobu Ogata, Haruyuki Inui, Isao Tanaka, Kyosuke Kishida, Si Gao, Wenqi Mao, Yu Bai, Ruixiao Zheng, Jun-Ping Du Strategy for managing both high strength and large ductility in structural materials–sequential nucleation of different deformation modes based on a concept of plaston Strategy for managing both high strength and large ductility in structural materials–sequential nucleation of different deformation modes based on a concept of plaston Strategy for managing both high strength and large ductility in structural materials–sequential nucleation of different deformation modes based on a concept of plaston Scripta Materialia, 181, 35-42 Scripta Materialia, 181, 35-42 Scripta Materialia, 181, 35-42 2020/05 研究論文(学術雑誌) 公開
Md. Lokman Ali, Shuhei Shinzato, Vei Wang, Zeqi Shen, Jun-ping Du, Shigenobu Ogata Md. Lokman Ali, Shuhei Shinzato, Vei Wang, Zeqi Shen, Jun-ping Du, Shigenobu Ogata Md. Lokman Ali, Shuhei Shinzato, Vei Wang, Zeqi Shen, Jun-ping Du, Shigenobu Ogata An Atomistic Modeling Study of the Relationship between Critical Resolved Shear Stress and Atomic Structure Distortion in FCC High Entropy Alloys — Relationship in Random Solid Solution and Chemical-Short-Range-Order Alloys — An Atomistic Modeling Study of the Relationship between Critical Resolved Shear Stress and Atomic Structure Distortion in FCC High Entropy Alloys — Relationship in Random Solid Solution and Chemical-Short-Range-Order Alloys — An Atomistic Modeling Study of the Relationship between Critical Resolved Shear Stress and Atomic Structure Distortion in FCC High Entropy Alloys — Relationship in Random Solid Solution and Chemical-Short-Range-Order Alloys — MATERIALS TRANSACTIONS, 61, 4, 605-609 MATERIALS TRANSACTIONS, 61, 4, 605-609 MATERIALS TRANSACTIONS, 61, 4, 605-609 2020/04/01 研究論文(学術雑誌) 公開
Peijun Yu, Rui Feng, Junping Du, Shuhei Shinzato, Jyh-Pin Chou, Bilin Chen, Yu-Chieh Lo, Peter K. Liaw, Shigenobu Ogata, Alice Hu Peijun Yu, Rui Feng, Junping Du, Shuhei Shinzato, Jyh-Pin Chou, Bilin Chen, Yu-Chieh Lo, Peter K. Liaw, Shigenobu Ogata, Alice Hu Peijun Yu, Rui Feng, Junping Du, Shuhei Shinzato, Jyh-Pin Chou, Bilin Chen, Yu-Chieh Lo, Peter K. Liaw, Shigenobu Ogata, Alice Hu Phase transformation assisted twinning in a face-centered-cubic FeCrNiCoAl high entropy alloy Phase transformation assisted twinning in a face-centered-cubic FeCrNiCoAl high entropy alloy Phase transformation assisted twinning in a face-centered-cubic FeCrNiCoAl high entropy alloy Acta Materialia, 181, 491-500 Acta Materialia, 181, 491-500 Acta Materialia, 181, 491-500 2019/12 研究論文(学術雑誌) 公開
Liang Wan, Wen-Tong Geng, Akio Ishii, Jun-Ping Du, Qingsong Mei, Nobuyuki Ishikawa, Hajime Kimizuka, Shigenobu Ogata Liang Wan, Wen-Tong Geng, Akio Ishii, Jun-Ping Du, Qingsong Mei, Nobuyuki Ishikawa, Hajime Kimizuka, Shigenobu Ogata Liang Wan, Wen-Tong Geng, Akio Ishii, Jun-Ping Du, Qingsong Mei, Nobuyuki Ishikawa, Hajime Kimizuka, Shigenobu Ogata Hydrogen embrittlement controlled by reaction of dislocation with grain boundary in alpha-iron Hydrogen embrittlement controlled by reaction of dislocation with grain boundary in alpha-iron Hydrogen embrittlement controlled by reaction of dislocation with grain boundary in alpha-iron International Journal of Plasticity, 112, 206-219 International Journal of Plasticity, 112, 206-219 International Journal of Plasticity, 112, 206-219 2019/01 英語 研究論文(学術雑誌) 公開
Yun-Jiang Wang, Jun-Ping Du, Shuhei Shinzato, Lan-Hong Dai, Shigenobu Ogata Yun-Jiang Wang, Jun-Ping Du, Shuhei Shinzato, Lan-Hong Dai, Shigenobu Ogata Yun-Jiang Wang, Jun-Ping Du, Shuhei Shinzato, Lan-Hong Dai, Shigenobu Ogata A free energy landscape perspective on the nature of collective diffusion in amorphous solids A free energy landscape perspective on the nature of collective diffusion in amorphous solids A free energy landscape perspective on the nature of collective diffusion in amorphous solids Acta Materialia, 157, 165-173 Acta Materialia, 157, 165-173 Acta Materialia, 157, 165-173 2018/09 英語 公開
Liang Wan, Akio Ishii, Jun-Ping Du, Wei-Zhong Han, Qingsong Mei, Shigenobu Ogata Liang Wan, Akio Ishii, Jun-Ping Du, Wei-Zhong Han, Qingsong Mei, Shigenobu Ogata Liang Wan, Akio Ishii, Jun-Ping Du, Wei-Zhong Han, Qingsong Mei, Shigenobu Ogata Atomistic modeling study of a strain-free stress driven grain boundary migration mechanism Atomistic modeling study of a strain-free stress driven grain boundary migration mechanism Atomistic modeling study of a strain-free stress driven grain boundary migration mechanism SCRIPTA MATERIALIA, 134, 52-56 SCRIPTA MATERIALIA, 134, 52-56 SCRIPTA MATERIALIA, 134, 52-56 2017/06 英語 研究論文(学術雑誌) 公開
W.T. Geng, Liang Wan, Jun-Ping Du, Akio Ishii, Nobuyuki Ishikawa, Hajime Kimizuka, Shigenobu Ogata W.T. Geng, Liang Wan, Jun-Ping Du, Akio Ishii, Nobuyuki Ishikawa, Hajime Kimizuka, Shigenobu Ogata W. T. Geng, Liang Wan, Jun-Ping Du, Akio Ishii, Nobuyuki Ishikawa, Hajime Kimizuka, Shigenobu Ogata Hydrogen bubble nucleation in α-iron Hydrogen bubble nucleation in α-iron Hydrogen bubble nucleation in alpha-iron Scripta Materialia, 134, 105-109 Scripta Materialia, 134, 105-109 SCRIPTA MATERIALIA, 134, 105-109 2017/06 英語 研究論文(学術雑誌) 公開
Jun-Ping Du, Yun-Jiang Wang, Yu-Chieh Lo, Liang Wan, Shigenobu Ogata Jun-Ping Du, Yun-Jiang Wang, Yu-Chieh Lo, Liang Wan, Shigenobu Ogata Jun-Ping Du, Yun-Jiang Wang, Yu-Chieh Lo, Liang Wan, Shigenobu Ogata Mechanism transition and strong temperature dependence of dislocation nucleation from grain boundaries: An accelerated molecular dynamics study Mechanism transition and strong temperature dependence of dislocation nucleation from grain boundaries: An accelerated molecular dynamics study Mechanism transition and strong temperature dependence of dislocation nucleation from grain boundaries: An accelerated molecular dynamics study PHYSICAL REVIEW B, 94, 10, 104110 PHYSICAL REVIEW B, 94, 10, 104110 PHYSICAL REVIEW B, 94, 10, 104110 2016/09 英語 研究論文(学術雑誌) 公開
Ming-Shuai Ding, Jun-Ping Du, Liang Wan, Shigenobu Ogata, Lin Tian, Evan Ma, Wei-Zhong Han, Ju Li, Zhi-Wei Shan Ming-Shuai Ding, Jun-Ping Du, Liang Wan, Shigenobu Ogata, Lin Tian, Evan Ma, Wei-Zhong Han, Ju Li, Zhi-Wei Shan Ming-Shuai Ding, Jun-Ping Du, Liang Wan, Shigenobu Ogata, Lin Tian, Evan Ma, Wei-Zhong Han, Ju Li, Zhi-Wei Shan Radiation-Induced Helium Nanobubbles Enhance Ductility in Submicron-Sized Single-Crystalline Copper Radiation-Induced Helium Nanobubbles Enhance Ductility in Submicron-Sized Single-Crystalline Copper Radiation-Induced Helium Nanobubbles Enhance Ductility in Submicron-Sized Single-Crystalline Copper NANO LETTERS, 16, 7, 4118-4124 NANO LETTERS, 16, 7, 4118-4124 NANO LETTERS, 16, 7, 4118-4124 2016/07 英語 研究論文(学術雑誌) 公開
Qin-Na Fan, Chong-Yu Wang, Tao Yu, Jun-Ping Du Qin-Na Fan, Chong-Yu Wang, Tao Yu, Jun-Ping Du Qin-Na Fan, Chong-Yu Wang, Tao Yu, Jun-Ping Du A ternary Ni-Al-W EAM potential for Ni-based single crystal superalloys A ternary Ni-Al-W EAM potential for Ni-based single crystal superalloys A ternary Ni-Al-W EAM potential for Ni-based single crystal superalloys PHYSICA B-CONDENSED MATTER, 456, 283-292 PHYSICA B-CONDENSED MATTER, 456, 283-292 PHYSICA B-CONDENSED MATTER, 456, 283-292 2015/01 英語 研究論文(学術雑誌) 公開
Jun-Ping Du, Chong-Yu Wang, Tao Yu Jun-Ping Du, Chong-Yu Wang, Tao Yu Jun-Ping Du, Chong-Yu Wang, Tao Yu Cross-slip process in model Ni(Al) solid solution: An embedded-atom method study Cross-slip process in model Ni(Al) solid solution: An embedded-atom method study Cross-slip process in model Ni(Al) solid solution: An embedded-atom method study COMPUTATIONAL MATERIALS SCIENCE, 91, 192-199 COMPUTATIONAL MATERIALS SCIENCE, 91, 192-199 COMPUTATIONAL MATERIALS SCIENCE, 91, 192-199 2014/08 英語 研究論文(学術雑誌) 公開
Jun-Ping Du, Chong-Yu Wang, Tao Yu Jun-Ping Du, Chong-Yu Wang, Tao Yu Du Jun-Ping, Wang Chong-Yu, Yu Tao The ternary Ni-Al-Co embedded-atom-method potential for γ/γ' Ni-based single-crystal superalloys: Construction and application The ternary Ni-Al-Co embedded-atom-method potential for γ/γ' Ni-based single-crystal superalloys: Construction and application The ternary Ni-Al-Co embedded-atom-method potential for gamma/gamma ' Ni-based single-crystal superalloys: Construction and application Chinese Physics B, 23, 3, 033401 Chinese Physics B, 23, 3, 033401 CHINESE PHYSICS B, 23, 3, 033401 2014/03 英語 研究論文(学術雑誌) 公開
Jun-Ping Du, Chong-Yu Wang, Tao Yu Jun-Ping Du, Chong-Yu Wang, Tao Yu Jun-Ping Du, Chong-Yu Wang, Tao Yu Construction and application of multi-element EAM potential in Ni-based single crystal model superalloys Construction and application of multi-element EAM potential in Ni-based single crystal model superalloys Construction and application of multi-element EAM potential in Ni-based single crystal model superalloys Central Iron and Steel Research Institute, China Central Iron and Steel Research Institute, China Central Iron and Steel Research Institute, China 2014 中国語 学位論文(博士) 公開
Jun-Ping Du, Chong-Yu Wang, Tao Yu Jun-Ping Du, Chong-Yu Wang, Tao Yu J. P. Du, C. Y. Wang, T. Yu Construction and application of multi-element EAM potential (Ni-Al-Re) in γ/γ´ Ni-based single crystal superalloys Construction and application of multi-element EAM potential (Ni-Al-Re) in γ/γ´ Ni-based single crystal superalloys Construction and application of multi-element EAM potential (Ni-Al-Re) in gamma/gamma ' Ni-based single crystal superalloys Modelling Simulation in Materials Science and Engineering, 21, 1, 015007 Modelling Simulation in Materials Science and Engineering, 21, 1, 015007 MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 21, 1, 015007 2013/01 英語 研究論文(学術雑誌) 公開
Xie Hong-Xian, Wang Chong-Yu, Yu Tao, Du Jun-Ping Xie Hong-Xian, Wang Chong-Yu, Yu Tao, Du Jun-Ping Xie Hong-Xian, Wang Chong-Yu, Yu Tao, Du Jun-Ping Dislocation formation and twinning from the crack tip in Ni3Al: molecular dynamics simulations Dislocation formation and twinning from the crack tip in Ni3Al: molecular dynamics simulations Dislocation formation and twinning from the crack tip in Ni3Al: molecular dynamics simulations CHINESE PHYSICS B, 18, 1, 251-258 CHINESE PHYSICS B, 18, 1, 251-258 CHINESE PHYSICS B, 18, 1, 251-258 2009/01 英語 研究論文(学術雑誌) 公開
Yu Tao, Chen LiQun, Wang ChongYu, Qiu ZhengChen, Du JunPing Yu Tao, Chen LiQun, Wang ChongYu, Qiu ZhengChen, Du JunPing Yu Tao, Chen LiQun, Wang ChongYu, Qiu ZhengChen, Du JunPing First-principles investigation of the impurity-kink interaction in bcc iron First-principles investigation of the impurity-kink interaction in bcc iron First-principles investigation of the impurity-kink interaction in bcc iron CHINESE SCIENCE BULLETIN, 53, 12, 1796-1803 CHINESE SCIENCE BULLETIN, 53, 12, 1796-1803 CHINESE SCIENCE BULLETIN, 53, 12, 1796-1803 2008/06 英語 研究論文(学術雑誌) 公開
Tao Yu, Hong-Xian Xie, Jun-Ping Du, Li-Xia Cao, Chong-Yu Wang Tao Yu, Hong-Xian Xie, Jun-Ping Du, Li-Xia Cao, Chong-Yu Wang Tao Yu, Hong-Xian Xie, Jun-Ping Du, Li-Xia Cao, Chong-Yu Wang Progress of investigation on crack dynamics Progress of investigation on crack dynamics Progress of investigation on crack dynamics Metallic Functional Materials, 15, 39 Metallic Functional Materials, 15, 39 Metallic Functional Materials, 15, 39 2008 中国語 研究論文(学術雑誌) 公開

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