Shear response of the Sigma 11, < 1 1 0 > {131} symmetric tilt grain boundary studied by molecular dynamics
文献类型：期刊论文
| 作者 | L. Wan ; S. Q. Wang |
| 刊名 | Modelling and Simulation in Materials Science and Engineering
 |
| 出版日期 | 2009 |
| 卷号 | 17期号:4 |
| 关键词 | mechanical-behavior sliding resistance room-temperature dislocations aluminum deformation migration motion al defects |
| ISSN号 | 0965-0393 |
| 中文摘要 | The deformation behavior of Al and Cu bicrystals with the Sigma 11, < 1 1 0 > {1 3 1} symmetric tilt grain boundary (STGB) under pure shear has been studied by molecular dynamics with embedded-atom method interatomic potentials. The simulated results indicate that the plastic strain of the bicrystals can be accommodated by GB migration coupled shear deformation or GB sliding, depending on the shear direction. Detailed study reveals that both the GB coupling motion and the GB sliding can be rationalized by the GB disconnection mechanism. The calculated coupling factors agree well with the vertical bar(b) over right arrow vertical bar/h ratios of the responsible disconnections. Based on these results, a shear-direction-dependent deformation behavior of this GB is proposed by placing special emphasis on the dominant role of the GB disconnections with a Burger's vector of the (1/22) < 4 7 1 > type. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32336]  |
| 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. Wan,S. Q. Wang. Shear response of the Sigma 11, < 1 1 0 > {131} symmetric tilt grain boundary studied by molecular dynamics[J]. Modelling and Simulation in Materials Science and Engineering,2009,17(4). |
| APA | L. Wan,&S. Q. Wang.(2009).Shear response of the Sigma 11, < 1 1 0 > {131} symmetric tilt grain boundary studied by molecular dynamics.Modelling and Simulation in Materials Science and Engineering,17(4). |
| MLA | L. Wan,et al."Shear response of the Sigma 11, < 1 1 0 > {131} symmetric tilt grain boundary studied by molecular dynamics".Modelling and Simulation in Materials Science and Engineering 17.4(2009). |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。