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Dislocation-twin interactions in nanocrystalline fcc metals
文献类型：期刊论文
| 作者 | Zhu YT; Wu XL(武晓雷) ; Liao XZ; Narayan J; Kecskes LJ; Mathaudhu SN
|
| 刊名 | Acta Materialia
 |
| 出版日期 | 2011 |
| 卷号 | 59期号:2页码:812-821 |
| 通讯作者邮箱 | ytzhu@ncsu.edu |
| 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 |
| ISSN号 | 1359-6454 |
| 产权排序 | [Zhu, YT; Narayan, J] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA; [Wu, XL] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; [Liao, XZ] Univ Sydney, Sch Aerosp Mech & Mech Engn, Sydney, NSW 2006, Australia; [Kecskes, LJ; Mathaudhu, SN] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA |
| 通讯作者 | Zhu, YT (reprint author), N Carolina State Univ, Dept Mat Sci & Engn, Box 7907, Raleigh, NC 27695 USA |
| 合作状况 | 国际 |
| 中文摘要 | 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. |
| 学科主题 | Materials Science; Metallurgy & Metallurgical Engineering |
| 分类号 | 一类 |
| 类目[WOS] | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Materials Science ; Metallurgy & Metallurgical Engineering |
| 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 |
| 收录类别 | SCI ; EI |
| 资助信息 | 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. |
| 原文出处 | http://dx.doi.org/10.1016/j.actamat.2010.10.028 |
| 语种 | 英语 |
| WOS记录号 | WOS:000285486300041 |
| 公开日期 | 2012-04-01 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/44957]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 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,&Mathaudhu SN.(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. |
入库方式： OAI收割
来源：力学研究所
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