Formation of Fivefold Deformation Twins in Nanocrystalline Face-Centered-Cubic Copper Based on Molecular Dynamics Simulations
文献类型：期刊论文
| 作者 | Cao AJ(曹阿静) ; Wei YG(魏悦广)
|
| 刊名 | Applied Physics Letters
 |
| 出版日期 | 2006 |
| 卷号 | 89期号:4页码:041919 |
| 通讯作者邮箱 | chaoajing@lnm.imech.ac.cn ; ywei@lnm.imech.ac.cn |
| ISSN号 | 0003-6951 |
| 通讯作者 | Cao, AJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| 中文摘要 | Fivefold deformation twins were reported recently to be observed in the experiment of the nanocrystalline face-centered-cubic metals and alloys. However, they were not predicted previously based on the molecular dynamics (MD) simulations and the reason was thought to be a uniaxial tension considered in the simulations. In the present investigation, through introducing pretwins in grain regions, using the MD simulations, the authors predict out the fivefold deformation twins in the grain regions of the nanocrystal grain cell, which undergoes a uniaxial tension. It is shown in their simulation results that series of Shockley partial dislocations emitted from grain boundaries provide sequential twining mechanism, which results in fivefold deformation twins. (c) 2006 American Institute of Physics. |
| 学科主题 | 力学 |
| 类目[WOS] | Physics, Applied |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | EMBEDDED-ATOM-METHOD ; PLASTIC-DEFORMATION ; METALS ; NUCLEATION ; STRENGTH ; SYSTEMS ; AL |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000239376500052 |
| 公开日期 | 2007-06-15 ; 2007-12-05 ; 2009-06-23 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/16007]  |
| 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 | Cao AJ,Wei YG. Formation of Fivefold Deformation Twins in Nanocrystalline Face-Centered-Cubic Copper Based on Molecular Dynamics Simulations[J]. Applied Physics Letters,2006,89(4):041919. |
| APA | 曹阿静,&魏悦广.(2006).Formation of Fivefold Deformation Twins in Nanocrystalline Face-Centered-Cubic Copper Based on Molecular Dynamics Simulations.Applied Physics Letters,89(4),041919. |
| MLA | 曹阿静,et al."Formation of Fivefold Deformation Twins in Nanocrystalline Face-Centered-Cubic Copper Based on Molecular Dynamics Simulations".Applied Physics Letters 89.4(2006):041919. |
入库方式： OAI收割
来源：力学研究所
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