Nanoindentation size effect interpreted by the dislocation nucleation mechanism
文献类型：期刊论文
| 作者 | Liu XM(刘小明) ; Liu Zhanli; Zhang Zuoqi; Zhuang Zhuo; Wei YG(魏悦广)
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| 刊名 | JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE
 |
| 出版日期 | 2013-03-01 |
| 卷号 | 10期号:3页码:714-718 |
| 通讯作者邮箱 | xiaomingliu@lnm.imech.ac.cn |
| 关键词 | Nanoindentation Size Effect Dislocation Nucleation Atomic Finite Element Method Instability Criterion |
| ISSN号 | 1546-1955 |
| 产权排序 | [Liu, Xiaoming; Wei, Yueguang] Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China; [Liu, Zhanli; Zhuang, Zhuo] Tsinghua Univ, Dept Engn Mech, AML, Beijing 100084, Peoples R China; [Zhang, Zuoqi] Inst High Performance Comp, Singapore 138632, Singapore |
| 通讯作者 | Liu, XM (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China. |
| 合作状况 | 国内 |
| 中文摘要 | The instability criterion of atomic structure is used to investigate the nanoindentation size effect based on the dislocation nucleation mechanism. Both the dislocation nucleation location and the emission direction under indentation can be predicted. The nanoindentation size effect for hardness can be interpreted with a critical condition of the dislocation nucleation through adopting an Atomic Finite Element Method which is associated with the instability criterion. The present results agree well with the analytical solution based on the Rice model. The present results show that the nanoindentation size effect with the flat indenter can be expressed by using the dislocation nucleation concept. From dislocation nucleation point of view, the applied average force (hardness) required for dislocation emission is proportional to the inverse of square root of the width of the nano-indenter (contact zone size). |
| 学科主题 | 固体力学 |
| 分类号 | Q3 |
| 收录类别 | SCI ; EI |
| 资助信息 | National Natural Science Foundation of China [10772096, 11021262, 10932011, 11142005, 11202214, 91116003]; National Basic Research Program of China [2012CB937500] |
| 原文出处 | http://dx.doi.org/10.1166/jctn.2013.2760 |
| 语种 | 英语 |
| WOS记录号 | WOS:000315749100033 |
| 公开日期 | 2013-04-07 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/47145]  |
| 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 | Liu XM,Liu Zhanli,Zhang Zuoqi,et al. Nanoindentation size effect interpreted by the dislocation nucleation mechanism[J]. JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE,2013,10(3):714-718. |
| APA | Liu XM,Liu Zhanli,Zhang Zuoqi,Zhuang Zhuo,&Wei YG.(2013).Nanoindentation size effect interpreted by the dislocation nucleation mechanism.JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE,10(3),714-718. |
| MLA | Liu XM,et al."Nanoindentation size effect interpreted by the dislocation nucleation mechanism".JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE 10.3(2013):714-718. |
入库方式： OAI收割
来源：力学研究所
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