High tensile ductility via enhanced strain hardening in ultrafine-grained Cu
文献类型：期刊论文
| 作者 | P. Xue ; B. L. Xiao ; Z. Y. Ma |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2012 |
| 卷号 | 532页码:106-110 |
| ISSN号 | 0921-5093 |
| 关键词 | Copper Grain boundaries Ductility Dynamic recrystallization Friction stir processing severe plastic-deformation bulk nanostructured materials mechanical-behavior aluminum-alloys metals nanocrystalline strength copper |
| 中文摘要 | Low tensile ductility owing to the insufficient strain hardening is the main drawback for ultrafine-grained (UFG) materials, which restricts their practical applications. Here, via a simple friction stir processing technique with additional cooling, we prepared UFG Cu with high strength and tensile ductility. Enhanced strain hardening capacity, which is effective in blocking and accumulating dislocations, was achieved in the present recrystallized UFG microstructure. The enhanced strain hardening capacity is attributed primarily to the low dislocation density, and the presence of large fraction of high angle grain boundaries and a certain amount of coherent twin boundaries. This work provides a strategy for designing UFG materials with good mechanical properties. (C) 2011 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60378]  |
| 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 | P. Xue,B. L. Xiao,Z. Y. Ma. High tensile ductility via enhanced strain hardening in ultrafine-grained Cu[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2012,532:106-110. |
| APA | P. Xue,B. L. Xiao,&Z. Y. Ma.(2012).High tensile ductility via enhanced strain hardening in ultrafine-grained Cu.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,532,106-110. |
| MLA | P. Xue,et al."High tensile ductility via enhanced strain hardening in ultrafine-grained Cu".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 532(2012):106-110. |
入库方式： OAI收割
来源：金属研究所
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