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

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

作者机构：Key Laboratory of Materials Modification by Laser Ion and Electron Beams (Ministry of Education) Dalian University of Technology Dalian 116024 China Department of Nuclear Science and Technology Xi' an Jiaotong University Xi' an 710049 China Center of Microstructure Science Multi-Disciplinary Materials Research Center Frontier Institute of Science and TechnologyState Key Laboratory for Mechanical Behavior of Materials Xi' an Jiaotong University Xi' an 710049 China Department of Materials Science and Engineering Ohio State University Columbus Ohio 43210 USA Key Laboratory of Advanced Materials of Ministry of Education School of Materials Science and Engineering Tsinghua University Beijing 100084 China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2017年第26卷第2期

页      面：363-369页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 0704[理学-天文学] 

基　　金：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) the NETL Project(Grant No.DE-FE0027776) 

主　　题：phase field method atomistic simulation void evolution irradiation 

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 *** 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.