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Effect of lead atom penetration on displacement cascade in bcc iron studied by molecular dynamics simulation

文献类型：期刊论文

作者Rui, Heng1; Zhu, Huiping1; Chang, Baochen1; Zhou, Ting2; Wang, Dong3; Gao, Ning4,5; Niu, Fenglei1; Ma, Yan1
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
出版日期2020-07-15
卷号475页码:33-38
关键词Molecular dynamics Displacement cascade Lead atom penetration Iron
ISSN号0168-583X
DOI10.1016/j.nimb.2020.04.022
通讯作者Zhu, Huiping(zhuhuiping@ncepu.edu.cn)
英文摘要Displacement cascades in bcc Fe-Pb solid solution are studied by molecular dynamics (MD) simulations. The Fe-Pb alloy model with different Pb concentrations was set as the Pb penetration structure of iron-based materials in actual working conditions. The results show that Pb atom penetration enhances the radiation damage of displacement cascades in Fe. The number of stable point defects in Fe-Pb alloy increases significantly, varies with Pb concentration and PKA energy. The differences of defect recombination rate are obvious under different Pb concentrations. Point defect analysis results indicate that there are rules in the relation between the interstitial and vacancy of two elements. Besides, unconnected cascade collision is found in Fe-Pb model under 10 keV, and the size of the subcascade affects the formation of cluster. The cluster results show that the interstitial form clusters easier and larger than vacancy, the PKA energy and Pb concentration can influence the size of clusters.
WOS关键词COMPUTER-SIMULATION ; CORROSION BEHAVIOR ; ENERGY ; FE ; BISMUTH ; STEELS ; ALLOY ; LBE
资助项目National Natural Science Foundation of China[11705059] ; National Natural Science Foundation of China[U1967212] ; National Natural Science Foundation of China[11705058] ; National Natural Science Foundation of China[11635005] ; Science and Technology on Reactor System Design Technology Laboratory ; Fundamental Research Funds for the Central Universities[2019MS034] ; Beijing Natural Science Foundation[1192016] ; Beijing Natural Science Foundation[2162040] ; National Science and Technology Major Project[2019ZX06004009]
WOS研究方向Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种英语
WOS记录号WOS:000536908800006
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Science and Technology on Reactor System Design Technology Laboratory ; Fundamental Research Funds for the Central Universities ; Beijing Natural Science Foundation ; National Science and Technology Major Project
源URL[http://119.78.100.186/handle/113462/140758]  
专题中国科学院近代物理研究所
通讯作者Zhu, Huiping
作者单位1.North China Elect Power Univ, Beijing 102206, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
3.Nucl Power Inst China, Sci & Technol Reactor Fuel & Mat Lab, Chengdu 610213, Peoples R China
4.ShanDong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Peoples R China
5.ShanDong Univ, Key Lab Particle Phys & Particle Irradiat MOE, Qingdao 266237, Peoples R China
推荐引用方式
GB/T 7714		 Rui, Heng,Zhu, Huiping,Chang, Baochen,et al. Effect of lead atom penetration on displacement cascade in bcc iron studied by molecular dynamics simulation[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2020,475:33-38.
APA Rui, Heng.,Zhu, Huiping.,Chang, Baochen.,Zhou, Ting.,Wang, Dong.,...&Ma, Yan.(2020).Effect of lead atom penetration on displacement cascade in bcc iron studied by molecular dynamics simulation.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,475,33-38.
MLA Rui, Heng,et al."Effect of lead atom penetration on displacement cascade in bcc iron studied by molecular dynamics simulation".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 475(2020):33-38.

入库方式： OAI收割

来源：近代物理研究所

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