Dislocation-twin interactions in nanocrystalline fcc metals

doi:10.1016/j.actamat.2010.10.028

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
发表期刊	Acta Materialia
	2011
卷号	59 期号:2 页码:812-821
ISSN	1359-6454
摘要	Dislocation 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.
关键词	Nanocrystalline 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
学科领域	Materials Science ; Metallurgy & Metallurgical Engineering
DOI	10.1016/j.actamat.2010.10.028
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000285486300041
关键词[WOS]	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
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者	Y.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.
课题组名称	LNM材料介观力学性能的表征
论文分区	一类
引用统计	被引频次：304[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/44957
专题	非线性力学国家重点实验室
通讯作者	Zhu, YT (reprint author), N Carolina State Univ, Dept Mat Sci & Engn, Box 7907, Raleigh, NC 27695 USA
推荐引用方式 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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