A mesomechanical ductility model of SiCp/Al composite

被引：0
作者：
Kang-hua Chen
Da-wei Huang
Min Song
Xia Li
Ling Fang
机构：
[1] Central South University,State Key Laboratory of Powder Metallurgy
来源：
Journal of Central South University of Technology | 2006年 / 13卷
关键词：
SiC; /Al; composite; mesomechanics; tensile ductility; model; TB333;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Based on tensile cracking of SiCp and decohesion of the interface between SiCp and Al matrix, a mesome-chanical model for tensile deformation of SiCp/Al composites was developed. The microcracks and multi-scale second phase particles were assumed to distribute homogeneously. A nonlinear quantitative relationship between tensile ductility and volume fraction of SiCp was established based on the model. The tensile ductility values of 2xxx SiCp/Al and 6xxx SiCp/Al composites predicted by the model are in good agreement with the experimental values. The analysis of effects of multi-scale second phases on the ductility of the composites indicates that the ductility decreases with the increase of the volume fraction of SiCp and precipitates in Al matrix and is almost independent of constituents and dispersoids.
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页码：325 / 331
页数：6
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