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Strengthening Materials by Engineering Coherent Internal Boundaries at the Nanoscale
文献类型：期刊论文
| 作者 | K. Lu ; L. Lu ; S. Suresh |
| 刊名 | Science
 |
| 出版日期 | 2009 |
| 卷号 | 324期号:5925页码:349-352 |
| 关键词 | strain-rate sensitivity stacking-fault energy nano-scale twins cu-al alloys nanocrystalline metals mechanical-properties activation volume copper deformation behavior |
| ISSN号 | 0036-8075 |
| 中文摘要 | Strengthening materials traditionally involves the controlled creation of internal defects and boundaries so as to obstruct dislocation motion. Such strategies invariably compromise ductility, the ability of the material to deform, stretch, or change shape permanently without breaking. Here, we outline an approach to optimize strength and ductility by identifying three essential structural characteristics for boundaries: coherency with surrounding matrix, thermal and mechanical stability, and smallest feature size finer than 100 nanometers. We assess current understanding of strengthening and propose a methodology for engineering coherent, nanoscale internal boundaries, specifically those involving nanoscale twin boundaries. Additionally, we discuss perspectives on strengthening and preserving ductility, along with potential applications for improving failure tolerance, electrical conductivity, and resistance to electromigration. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32151]  |
| 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 | K. Lu,L. Lu,S. Suresh. Strengthening Materials by Engineering Coherent Internal Boundaries at the Nanoscale[J]. Science,2009,324(5925):349-352. |
| APA | K. Lu,L. Lu,&S. Suresh.(2009).Strengthening Materials by Engineering Coherent Internal Boundaries at the Nanoscale.Science,324(5925),349-352. |
| MLA | K. Lu,et al."Strengthening Materials by Engineering Coherent Internal Boundaries at the Nanoscale".Science 324.5925(2009):349-352. |
入库方式： OAI收割
来源：金属研究所
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