A strain gradient-strengthening law for particle reinforced metal matrix composites

被引：65
|
作者：
Dai, LH [1 ]
Ling, Z [1 ]
Bai, YL [1 ]
机构：
[1] Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech Continuous Media, Beijing 100080, Peoples R China
来源：
SCRIPTA MATERIALIA | 1999年 / 41卷 / 03期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1016/S1359-6462(99)00153-0
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A strain gradient-strengthening law for particle-reinforced metal matrix composites (MMCp) is developed based on a simple geometrically-necessary dislocation model. The law show the strengthening in MMCp to be controlled both the characteristic microstructural scale and the strain gradient of the matrix. Further, the particle size effect should be included in the strain gradient effect. This means that the strain gradient effect may be an important factor controlling the deformation and fracture behavior in MMCp.
引用
收藏
页码：245 / 251
页数：7
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