Effect of hydrogen atom concentration on hydrogen migration and bubble evolution in bcc iron

doi:10.1016/j.nimb.2019.09.025

	Effect of hydrogen atom concentration on hydrogen migration and bubble evolution in bcc iron
	Wei, Y. X.1,2; Gao, N.3,4; Wang, D.5; Chen, C.1,2; Guo, L. P.1,2
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
	2019-12-15
卷号	461 页码:83-87
关键词	Hydrogen High concentration Diffusion Molecular dynamics (MD)
ISSN号	0168-583X
DOI	10.1016/j.nimb.2019.09.025
通讯作者	Gao, N.(ning.gao@impcas.ac.cn) ; Guo, L. P.(guolp@whu.edu.cn)
英文摘要	The effect of the concentration of hydrogen (H) atoms on the hydrogen diffusion and evolution of hydrogen bubbles in body-centered cubic iron was investigated using molecular statics and molecular dynamics methods. The simulation results indicate that the local accumulation of H atoms can significantly influence their migration. Compared to the isolated H in a perfect lattice, the H atoms in a high-concentration H-cluster are trapped. After collecting a sufficient amount of hydrogen atoms, the H-vacancy cluster will push out one hydrogen atom instead of a self-interstitial atom, which indicates that loop-punching will not dominate the H-bubble growth in bcc iron. These results will provide a new understanding for the hydrogen-induced radiation damages in nuclear materials.
资助项目	National Natural Science Foundation of China[11775162] ; National Natural Science Foundation of China[11675230] ; National Natural Science Foundation of China[11975170] ; Youth Innovation Promotion Association CAS, China
WOS关键词	METALS
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000501391200014
资助机构	National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS, China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/141274]
专题	中国科学院近代物理研究所
通讯作者	Gao, N.; Guo, L. P.
作者单位	1.Wuhan Univ, Hubei Nucl Solid Phys Key Lab, Key Lab Artificial Micro & Nanostruct, Minist Educ, Wuhan 430072, Hubei, Peoples R China 2.Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 73000, Gansu, Peoples R China 4.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China 5.Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Wei, Y. X.,Gao, N.,Wang, D.,et al. Effect of hydrogen atom concentration on hydrogen migration and bubble evolution in bcc iron[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2019,461:83-87.
APA	Wei, Y. X.,Gao, N.,Wang, D.,Chen, C.,&Guo, L. P..(2019).Effect of hydrogen atom concentration on hydrogen migration and bubble evolution in bcc iron.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,461,83-87.
MLA	Wei, Y. X.,et al."Effect of hydrogen atom concentration on hydrogen migration and bubble evolution in bcc iron".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 461(2019):83-87.