| 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
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| Source Publication | Acta Materialia
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| 2011 | |
| Volume | 59Issue:2Pages:812-821 |
| ISSN | 1359-6454 |
| Abstract | 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. |
| Keyword | 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 |
| Subject Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| DOI | 10.1016/j.actamat.2010.10.028 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000285486300041 |
| WOS Keyword | 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 Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | 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. |
| Department | LNM材料介观力学性能的表征 |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/44957 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Zhu, 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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