Size dependence of rate-controlling deformation mechanisms in nanotwinned copper
文献类型：期刊论文
| 作者 | L. Lu ; M. Dao ; T. Zhu ; J. Li |
| 刊名 | Scripta Materialia
 |
| 出版日期 | 2009 |
| 卷号 | 60期号:12页码:1062-1066 |
| 关键词 | Twin boundary Size dependence Rate-controlling mechanism Activation volume strain-rate sensitivity coherent twin boundaries centered-cubic metals nano-scale twins nanoscale twins activation volume strength nanocrystalline ductility fcc |
| ISSN号 | 1359-6462 |
| 中文摘要 | Nanotwinned metals exhibit an unusual combination of ultrahigh strength, considerable ductility and enhanced rate sensitivity. We find that a Hall-Petch-type relationship closely fits the experiment data of activation volume as a function of twin spacing. The results suggest a transition of the rate-controlling mechanism from intra-twin- to twin-boundary-mediated processes with decreasing twin lamellar thickness. These findings provide insights into the possible routes for optimizing the strength and ductility of nanostructured metals by tailoring internal interfaces. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32153]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | L. Lu,M. Dao,T. Zhu,et al. Size dependence of rate-controlling deformation mechanisms in nanotwinned copper[J]. Scripta Materialia,2009,60(12):1062-1066. |
| APA | L. Lu,M. Dao,T. Zhu,&J. Li.(2009).Size dependence of rate-controlling deformation mechanisms in nanotwinned copper.Scripta Materialia,60(12),1062-1066. |
| MLA | L. Lu,et al."Size dependence of rate-controlling deformation mechanisms in nanotwinned copper".Scripta Materialia 60.12(2009):1062-1066. |
入库方式： OAI收割
来源：金属研究所
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