中国物理B ›› 2017, Vol. 26 ›› Issue (2): 26102-026102.doi: 10.1088/1674-1056/26/2/026102

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Irradiation-induced void evolution in iron: A phase-field approach with atomistic derived parameters

Yuan-Yuan Wang(王园园), Jian-Hua Ding(丁建华), Wen-Bo Liu(柳文波), Shao-Song Huang(黄绍松), Xiao-Qin Ke(柯小琴), Yun-Zhi Wang(王云志), Chi Zhang(张弛), Ji-Jun Zhao(赵纪军)   

  1. 1 Key Laboratory of Materials Modification by Laser, Ion and Electron Beams(Ministry of Education), Dalian University of Technology, Dalian 116024, China;
    2 Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China;
    3 Center of Microstructure Science, Multi-Disciplinary Materials Research Center, Frontier Institute of Science and Technology, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China;
    4 Department of Materials Science and Engineering, Ohio State University, Columbus, Ohio 43210, USA;
    5 Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • 收稿日期:2016-11-10 修回日期:2016-11-29 出版日期:2017-02-05 发布日期:2017-02-05
  • 通讯作者: Ji-Jun Zhao E-mail:zhaojj@dlut.edu.cn
  • 基金资助:
    Project supported by the National Magnetic Confinement Fusion Energy Research Project of China (Grant No. 2015GB118001), the Fundamental Research Funds for the Central Universities, China (Grant No. DUT16RC(3)052), the National Basic Research Program of China (Grant No. 2012CB619402), and the NETL Project (Grant No. DE-FE0027776).

Irradiation-induced void evolution in iron: A phase-field approach with atomistic derived parameters

Yuan-Yuan Wang(王园园)1, Jian-Hua Ding(丁建华)1, Wen-Bo Liu(柳文波)2, Shao-Song Huang(黄绍松)1, Xiao-Qin Ke(柯小琴)3, Yun-Zhi Wang(王云志)3,4, Chi Zhang(张弛)5, Ji-Jun Zhao(赵纪军)1   

  1. 1 Key Laboratory of Materials Modification by Laser, Ion and Electron Beams(Ministry of Education), Dalian University of Technology, Dalian 116024, China;
    2 Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China;
    3 Center of Microstructure Science, Multi-Disciplinary Materials Research Center, Frontier Institute of Science and Technology, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China;
    4 Department of Materials Science and Engineering, Ohio State University, Columbus, Ohio 43210, USA;
    5 Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2016-11-10 Revised:2016-11-29 Online:2017-02-05 Published:2017-02-05
  • Contact: Ji-Jun Zhao E-mail:zhaojj@dlut.edu.cn
  • Supported by:
    Project supported by the National Magnetic Confinement Fusion Energy Research Project of China (Grant No. 2015GB118001), the Fundamental Research Funds for the Central Universities, China (Grant No. DUT16RC(3)052), the National Basic Research Program of China (Grant No. 2012CB619402), and the NETL Project (Grant No. DE-FE0027776).

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摘要： A series of material parameters are derived from atomistic simulations and implemented into a phase field (PF) model to simulate void evolution in body-centered cubic (bcc) iron subjected to different irradiation doses at different temperatures. The simulation results show good agreement with experimental observations–the porosity as a function of temperature varies in a bell-shaped manner and the void density monotonically decreases with increasing temperatures; both porosity and void density increase with increasing irradiation dose at the same temperature. Analysis reveals that the evolution of void number and size is determined by the interplay among the production, diffusion and recombination of vacancy and interstitial.

关键词: phase field method, atomistic simulation, void evolution, irradiation

Abstract: A series of material parameters are derived from atomistic simulations and implemented into a phase field (PF) model to simulate void evolution in body-centered cubic (bcc) iron subjected to different irradiation doses at different temperatures. The simulation results show good agreement with experimental observations–the porosity as a function of temperature varies in a bell-shaped manner and the void density monotonically decreases with increasing temperatures; both porosity and void density increase with increasing irradiation dose at the same temperature. Analysis reveals that the evolution of void number and size is determined by the interplay among the production, diffusion and recombination of vacancy and interstitial.

Key words: phase field method, atomistic simulation, void evolution, irradiation

中图分类号:  (Theory of crystal structure, crystal symmetry; calculations and modeling)

  • 61.50.Ah
61.72.Qq (Microscopic defects (voids, inclusions, etc.))