Enhancing dislocation emission in nanocrystalline materials through shear-coupled migration of grain boundaries
文献类型：期刊论文
| 作者 | Li JJ(李建军); Soh, AK; Wu XL(武晓雷)
|
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2014-04-17 |
| 卷号 | 601页码:153-158 |
| 通讯作者邮箱 | jianjunli.mech@gmail.com |
| 关键词 | Nanocrystalline materials Dislocations Shear-coupled migration of grain boundaries Strength and ductility |
| ISSN号 | 0921-5093 |
| 产权排序 | [Li, Jianjun] Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710072, Shanxi, Peoples R China; [Wu, Xiaolei] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| 通讯作者 | Li, JJ (reprint author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710072, Shanxi, Peoples R China. |
| 合作状况 | 国内 |
| 中文摘要 | A theoretical model has been developed to illustrate the effect of shear-coupled migration of grain boundaries on dislocation emission in nanocrystalline materials. The energy characteristics and critical shear stress tau(c) that is required to initiate the emission process were determined. The results obtained show that the dislocation emission can be considerably enhanced as shear-coupled migration was the dominating process; a critical coupling factor that corresponded to the minimum tau(c), which led to an optimal dislocation emission, was also discovered. The proposed model has also been quantitatively validated by the existing molecular dynamics simulations. (C) 2014 Elsevier B.V. All rights reserved. |
| 学科主题 | Science & Technology - Other Topics; Materials Science; Metallurgy & Metallurgical Engineering |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | J. Li acknowledges the financial support of Start-up funding for the Newly-recruited High-level Talents of Northwestern Polytechnical University, People's Republic of China. A.K. Soh acknowledges the support of eScience funding (Project no.: 06-02-10-SF0195) from MOSTI (Malaysia) and the Advanced Engineering Programme and School of Engineering, Monash University Sunway Campus. |
| 原文出处 | http://dx.doi.org/10.1016/j.msea.2014.02.044 |
| 语种 | 英语 |
| WOS记录号 | WOS:000334132000020 |
| 公开日期 | 2014-06-05 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48838]  |
| 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 | Li JJ,Soh, AK,Wu XL. Enhancing dislocation emission in nanocrystalline materials through shear-coupled migration of grain boundaries[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2014,601:153-158. |
| APA | Li JJ,Soh, AK,&Wu XL.(2014).Enhancing dislocation emission in nanocrystalline materials through shear-coupled migration of grain boundaries.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,601,153-158. |
| MLA | Li JJ,et al."Enhancing dislocation emission in nanocrystalline materials through shear-coupled migration of grain boundaries".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 601(2014):153-158. |
入库方式： OAI收割
来源：力学研究所
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