IMR OpenIR
Interstitial loop strengthening upon deformation in aluminum via molecular dynamics simulations
H. Wang; D. S. Xu; P. Veyssiere; R. Yang
2013
Source PublicationActa Materialia
ISSN1359-6454
Volume61Issue:9Pages:3499-3508
AbstractThe formation of prismatic interstitial loops during plastic deformation, as well as their interaction with dislocations, is systematically investigated in aluminum, using molecular dynamics simulations. First, direct dislocation interaction is responsible for producing various types of defects, typically vacancies and their clusters and interstitial loops. Secondly, small interstitial loops act as obstacles to dislocation gliding. When close to each other, a loop either decorates a dislocation with jogs or drags it elastically. The mobility of a dislocation decorated by a loop is significantly reduced. Depending on the relative position of the dislocation and the loop, the Peierls stress can increase several hundred times. The present work shows a complete picture of dislocation-loop interaction with atomic-scale details, which provides reliable information for parameterizing dislocation-debris interactions in constitutive models. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
description.department[wang, h. ; xu, d. s. ; yang, r.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [veyssiere, p.] cnrs onera, lem, f-92322 chatillon, france. ; wang, h (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china. ; haowang@imr.ac.cn
KeywordPlasticity Hardening Molecular Dynamics Dislocation Prismatic Loop Stacking-fault Tetrahedra Dislocation Dynamics Temperature-dependence Edge Dislocation Quenched Gold Atomic-scale Fcc Metals Part i Dipole Annihilation Screw Dislocations
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71525
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
H. Wang,D. S. Xu,P. Veyssiere,et al. Interstitial loop strengthening upon deformation in aluminum via molecular dynamics simulations[J]. Acta Materialia,2013,61(9):3499-3508.
APA H. Wang,D. S. Xu,P. Veyssiere,&R. Yang.(2013).Interstitial loop strengthening upon deformation in aluminum via molecular dynamics simulations.Acta Materialia,61(9),3499-3508.
MLA H. Wang,et al."Interstitial loop strengthening upon deformation in aluminum via molecular dynamics simulations".Acta Materialia 61.9(2013):3499-3508.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[H. Wang]'s Articles
[D. S. Xu]'s Articles
[P. Veyssiere]'s Articles
Baidu academic
Similar articles in Baidu academic
[H. Wang]'s Articles
[D. S. Xu]'s Articles
[P. Veyssiere]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[H. Wang]'s Articles
[D. S. Xu]'s Articles
[P. Veyssiere]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.