Fatigue crack growth resistance of SiCp reinforced Al alloys: Effects of particle size, particle volume fraction, and matrix strength

被引:0
作者
M. T. Milan
P. Bowen
机构
[1] University of São Paulo,Department of Materials, Aeronautics, Automotive Engineering, Engineering School of São Carlos
来源
Journal of Materials Engineering and Performance | 2004年 / 13卷
关键词
composite; fatigue crack growth; matrix strength; particle size; volume fraction;
D O I
暂无
中图分类号
学科分类号
摘要
The main aim of this work was to study the effects of particle size, particle volume fraction, and matrix strength on the long fatigue crack growth resistance of two different grades of Al alloys (Al2124-T1 and Al6061-T1) reinforced with SiC particles. Basically, it was found that an increase in particle volume fraction and particle size increases the fatigue crack growth resistance at near threshold and Paris regimen, with matrix strength having a smaller effect. Near final failure, the stronger and more brittle composites are affected more by static modes of failure as the applied maximum stress intensity factor (Kmax) approaches mode I plane strain fracture toughness (KIC).
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页码:612 / 618
页数:6
相关论文
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