A generalized Peierls-Nabarro model for curved dislocations and core structures of dislocation loops in Al and Cu

doi:10.1016/j.actamat.2007.11.033

	A generalized Peierls-Nabarro model for curved dislocations and core structures of dislocation loops in Al and Cu
	Xiang, Yang 1; Wei, He 2; Ming, Pingbing3 ; E, Weinan 4,5
	2008-04-01
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	56 期号:7 页码:1447-1460
摘要	In this paper, we present a generalized Peierls-Nabarro model for curved dislocations. In the generalized Peierls-Nabarro model, the anisotropic elastic energy is obtained efficiently by solving the elasticity system associated with the disregistry across the slip plane using the fast Fourier transform method, and the generalized stacking fault energy is used for the interplanar potential across the slip plane. Simulation results are reported on the core structures and the activation energies of dislocation loops in Al and Cu, incorporating both the elastic anisotropy and the full disregistry vector in the slip plane. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	dislocation dislocation structures micromechanical modeling Peierls-Nabarro model
DOI	10.1016/j.actamat.2007.11.033
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000255305200005
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/5627
专题	计算数学与科学工程计算研究所
通讯作者	Xiang, Yang
作者单位	1.Hong Kong Univ Sci & Technol, Dept Math, Kowloon, Hong Kong, Peoples R China 2.Peking Univ, Sch Math Sci, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, Beijing 100080, Peoples R China 4.Princeton Univ, Dept Math, Princeton, NJ 08544 USA 5.Princeton Univ, PACM, Princeton, NJ 08544 USA
推荐引用方式 GB/T 7714	Xiang, Yang,Wei, He,Ming, Pingbing,et al. A generalized Peierls-Nabarro model for curved dislocations and core structures of dislocation loops in Al and Cu[J]. ACTA MATERIALIA,2008,56(7):1447-1460.
APA	Xiang, Yang,Wei, He,Ming, Pingbing,&E, Weinan.(2008).A generalized Peierls-Nabarro model for curved dislocations and core structures of dislocation loops in Al and Cu.ACTA MATERIALIA,56(7),1447-1460.
MLA	Xiang, Yang,et al."A generalized Peierls-Nabarro model for curved dislocations and core structures of dislocation loops in Al and Cu".ACTA MATERIALIA 56.7(2008):1447-1460.