Molecular dynamics studies on dislocations in crystallites of nanocrystalline alpha-iron
文献类型：期刊论文
| 作者 | Chen ZY(陈致英) ; Ding JQ(丁家强)
|
| 刊名 | Nanostructured Materials
 |
| 出版日期 | 1998 |
| 卷号 | 10期号:2页码:205-215 |
| ISSN号 | 0965-9773 |
| 通讯作者 | Chen, ZY (reprint author), Acad Sinica, Inst Mech, Lab Nonlinear Mech Continuous Media, Beijing 100080, Peoples R China. |
| 中文摘要 | Molecular dynamics simulations have been carried our to study the atomic structure of the crystalline component of nanocrystalline alpha-iron. A two-dimensional computational block is used to simulate the consolidation process. It is found that dislocations are generated in the crystallites during consolidation when the grain size is large enough. The critical value of the grain size for dislocation generation appears to be about 9 nm. This result agrees with experiment qualitatively. AN dislocations that are preset in the original grains glide out during consolidation. It shows that dislocations in the crystallites we generated in consolidation process, but not in the original grains. Higher consolidation pressure results in more dislocations. Furthermore, new interfaces are found within crystallites. These interfaces might result from the special environment of nanomaterial. (C) 1998 Acta Metallurgica Inc. |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 研究领域[WOS] | Materials Science |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000075231200009 |
| 公开日期 | 2009-08-03 ; 2010-06-13 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/33625]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Chen ZY,Ding JQ. Molecular dynamics studies on dislocations in crystallites of nanocrystalline alpha-iron[J]. Nanostructured Materials,1998,10(2):205-215. |
| APA | 陈致英,&丁家强.(1998).Molecular dynamics studies on dislocations in crystallites of nanocrystalline alpha-iron.Nanostructured Materials,10(2),205-215. |
| MLA | 陈致英,et al."Molecular dynamics studies on dislocations in crystallites of nanocrystalline alpha-iron".Nanostructured Materials 10.2(1998):205-215. |
入库方式： OAI收割
来源：力学研究所
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。