IMECH-IR  > 非线性力学国家重点实验室
Dislocation-twin interactions in nanocrystalline fcc metals
Zhu YT; Wu XL(武晓雷); Liao XZ; Narayan J; Kecskes LJ; Mathaudhu SN; Zhu, YT (reprint author), N Carolina State Univ, Dept Mat Sci & Engn, Box 7907, Raleigh, NC 27695 USA
Source PublicationActa Materialia
2011
Volume59Issue:2Pages:812-821
ISSN1359-6454
AbstractDislocation interaction with and accumulation at twin boundaries have been reported to significantly improve the strength and ductility of nanostructured face-centered cubic (fcc) metals and alloys. Here we systematically describe plausible dislocation interactions at twin boundaries. Depending on the characteristics of the dislocations and the driving stress, possible dislocation reactions at twin boundaries include cross-slip into the twinning plane to cause twin growth or de-twinning, formation of a sessile stair-rod dislocation at the twin boundary, and transmission across the twin boundary. The energy barriers for these dislocation reactions are described and compared. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordNanocrystalline Materials Dislocations Twin Boundaries Interactions Fcc Centered-cubic Metals Molecular-dynamics Simulation Fivefold Deformation Twins Strain-rate Sensitivity Stacking-fault Energy Formation Mechanism Nanotwinned Copper Nanoscale Twins Grained Copper Re Alloy
Subject AreaMaterials Science ; Metallurgy & Metallurgical Engineering
DOI10.1016/j.actamat.2010.10.028
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000285486300041
WOS KeywordCENTERED-CUBIC METALS ; MOLECULAR-DYNAMICS SIMULATION ; FIVEFOLD DEFORMATION TWINS ; STRAIN-RATE SENSITIVITY ; STACKING-FAULT ENERGY ; FORMATION MECHANISM ; NANOTWINNED COPPER ; NANOSCALE TWINS ; GRAINED COPPER ; RE ALLOY
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationY.T.Z. were supported by the US Army Research Office (W911NF-09-1-0427) and Army Research Laboratory (W911QX-08-C-0083). X.L.W. acknowledges the support of NSFC Grant Nos. 10721202, 11072243, and 973 and Project Grants Nos. 2010CB631004 and 2009CB623700.
DepartmentLNM材料介观力学性能的表征
Classification一类
Citation statistics
Cited Times:173[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44957
Collection非线性力学国家重点实验室
Corresponding AuthorZhu, YT (reprint author), N Carolina State Univ, Dept Mat Sci & Engn, Box 7907, Raleigh, NC 27695 USA
Recommended Citation
GB/T 7714
Zhu YT,Wu XL,Liao XZ,et al. Dislocation-twin interactions in nanocrystalline fcc metals[J]. Acta Materialia,2011,59(2):812-821.
APA Zhu YT.,武晓雷.,Liao XZ.,Narayan J.,Kecskes LJ.,...&Zhu, YT .(2011).Dislocation-twin interactions in nanocrystalline fcc metals.Acta Materialia,59(2),812-821.
MLA Zhu YT,et al."Dislocation-twin interactions in nanocrystalline fcc metals".Acta Materialia 59.2(2011):812-821.
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