Strain Gradient Plasticity Theory Based on Dislocation - controlling Mechanism for Nanocrystalline Materials

被引：0

作者：

Zhou, Jianqiu ^{[1
,2
]}

Ma, Lu ^{[2
]}

Zhu, Rongtao ^{[2
]}

机构：

[1] Wuhan Inst Technol, Dept Mech Engn, Wuhan 430070, Hubei Province, Peoples R China

[2] Nanjing Univ Technol, Dept Mech Engn, Nanjing 210009, Peoples R China

来源：

MANUFACTURING SCIENCE AND ENGINEERING, PTS 1-5 | 2010年 / 97-101卷

基金：

中国国家自然科学基金;

关键词：

nanocrystalline material; strain gradient plasticity; dislocation;

D O I：

10.4028/www.scientific.net/AMR.97-101.2155

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Due to their dissimilar properties and different deformation mechanisms between grain interior (GI) and grain boundary affected zone (GBAZ) in the nanocrystalline (NC) materials, a two-phase composite model consisting of GI and GBAZ was developed and adopted to build strain gradient plasticity theory. Comparison between experimental data and model predictions at different grain sizes for NC copper shows that the developed method appears to be capable of describing the strain hardening of NC materials.

引用

页码：2155 / +

页数：2

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