Consideration of Orowan strengthening effect in particulate-reinforced metal matrix nanocomposites: A model for predicting their yield strength

被引：1200
作者：
Zhang, Z [1 ]
Chen, DL [1 ]
机构：
[1] Ryerson Univ, Dept Mech & Ind Engn, Toronto, ON M5B 2K3, Canada
来源：
SCRIPTA MATERIALIA | 2006年 / 54卷 / 07期
基金：
加拿大自然科学与工程研究理事会;
关键词：
metal matrix nanocomposites; yield strength; Orowan strengthenin; load-bearing effect; enhanced dislocation density strengthening;
D O I：
10.1016/j.scriptamat.2005.12.017
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An analytical model for predicting the yield strength of particulate-reinforced metal matrix nanocomposites has been developed. The strengthening effects involving (i) Orowan strengthening effect, (ii) enhanced dislocation density due to the residual plastic strain caused by the difference in the coefficients of thermal expansion between the matrix and particles, and (iii) load-bearing effect have been taken into account in the model. The prediction is in good agreement with the experimental data reported in the literature. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1321 / 1326
页数：6
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