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A generalized Peierls-Nabarro model for curved dislocations and core structures of dislocation loops in Al and Cu
Xiang, Yang1; Wei, He2; Ming, Pingbing3; E, Weinan4,5
2008-04-01
Source PublicationACTA MATERIALIA
ISSN1359-6454
Volume56Issue:7Pages:1447-1460
AbstractIn 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.
Keyworddislocation dislocation structures micromechanical modeling Peierls-Nabarro model
DOI10.1016/j.actamat.2007.11.033
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000255305200005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
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Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/5627
Collection计算数学与科学工程计算研究所
Corresponding AuthorXiang, Yang
Affiliation1.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
Recommended Citation
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.
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