Hardness and strain rate sensitivity of nanocrystalline Cu

被引：470

作者：

Chen, J ^{[1
]}

Lu, L ^{[1
]}

Lu, K ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, SYNL, Shenyang 110016, Peoples R China

来源：

SCRIPTA MATERIALIA | 2006年 / 54卷 / 11期

基金：

中国国家自然科学基金;

关键词：

nanocrystalline Cu; hall-petch relation; grain size; strain rate sensitivity;

D O I：

10.1016/j.scriptamat.2006.02.022

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The measured hardness of nanocrystalline Cu with grain sizes (( as small as 10 nm still follows the Hall-Petch relation. A rate sensitivity of 0.06 +/- 0.01 and a flow stress activation volume of 8b(3) were determined at d = 10 nm, suggesting grain boundary activities are enhanced but not yet dominant in the plastic deformation. (c) 2006 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.

引用

页码：1913 / 1918

页数：6

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