Defect-induced change of temperature-dependent elastic constants in BCC iron

doi:10.1016/j.jnucmat.2017.04.005

	Defect-induced change of temperature-dependent elastic constants in BCC iron
	Gao, N.1; Setyawan, W.2; Zhang, S. H.3; Wang, Z. G.1
刊名	JOURNAL OF NUCLEAR MATERIALS
	2017-07-01
卷号	490 页码:125-129
关键词	Elastic constants Vacancy Void Dislocation loop Molecular dynamics (MD)
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2017.04.005
英文摘要	The effects of radiation-induced defects (randomly distributed vacancies, voids, and interstitial dislocation loops) on temperature-dependent elastic constants, C-11, C-12, and C-44 in BCC iron, are studied with molecular dynamics method. The elastic constants are found to decrease with increasing temperatures for all cases containing different defects. The presence of vacancies, voids, or interstitial loops further decreases the elastic constants. For a given number of point defects, the randomly distributed vacancies show the strongest effect compared to voids or interstitial loops. All these results are expected to provide useful information to combine with experimental results for further understanding of radiation damage. (C) 2017 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11375242] ; National Natural Science Foundation of China[11675230] ; National Natural Science Foundation of China[91426301] ; U.S. Department of Energy, Office of Fusion Energy Sciences[DE-AC06-76RLO 1830]
WOS关键词	DISLOCATION LOOPS ; ALPHA-IRON ; SINGLE-CRYSTALS ; DYNAMICS ; COPPER ; TRANSITION ; IRRADIATION ; IMPURITIES ; SIMULATION ; MODULUS
WOS研究方向	Materials Science ; Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000403132300015
资助机构	National Natural Science Foundation of China ; U.S. Department of Energy, Office of Fusion Energy Sciences
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/44974]
专题	中国科学院近代物理研究所
通讯作者	Gao, N.
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 73000, Peoples R China 2.Pacific Northwest Natl Lab, Richland, WA 99352 USA 3.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Gao, N.,Setyawan, W.,Zhang, S. H.,et al. Defect-induced change of temperature-dependent elastic constants in BCC iron[J]. JOURNAL OF NUCLEAR MATERIALS,2017,490:125-129.
APA	Gao, N.,Setyawan, W.,Zhang, S. H.,&Wang, Z. G..(2017).Defect-induced change of temperature-dependent elastic constants in BCC iron.JOURNAL OF NUCLEAR MATERIALS,490,125-129.
MLA	Gao, N.,et al."Defect-induced change of temperature-dependent elastic constants in BCC iron".JOURNAL OF NUCLEAR MATERIALS 490(2017):125-129.