Novel analysis for nanoindentation size effect using strain gradient plasticity

被引：19

作者：

Lee, H ^{[1
]}

Ko, S ^{[1
]}

Han, J ^{[1
]}

Park, H ^{[1
]}

Hwang, W ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Mech Engn, Pohang 790784, Gyungbuk, South Korea

来源：

SCRIPTA MATERIALIA | 2005年 / 53卷 / 10期

关键词：

strain gradient plasticity; nanoindentation; size effect; depth-dependent hardness;

D O I：

10.1016/j.scriptamat.2005.07.027

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A model describing nanoindentation as plastic deformation resulting from a strain gradient is investigated. Using a simplified indentation model, the effective strain and effective strain gradient for indentation depth are derived. To validate the proposed model, solutions for depth-dependent hardness of Ag, Al, Cu and Ni are compared with experiments. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1135 / 1139

页数：5

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