SiCp/Al梯度复合材料疲劳裂纹扩展和亚临界扩展行为

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材料工程 ›› 2003, Vol. 0 ›› Issue (10) : 11-13.

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研究与应用

SiC_p/Al梯度复合材料疲劳裂纹扩展和亚临界扩展行为

许富民¹, 朱世杰^1,2, 赵杰¹, 王富岗¹

作者信息 +

Fatigue Crack Growth and Subcritical Propagation Behavior in a SiC_p/Al Matrix Functionally Graded-composite

XU Fu-min¹, ZHU Shi-jie^1,2, ZHAO Jie¹, WANG Fu-gang¹

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文章历史 +

摘要

采用粉末冶金法制备了SiC颗粒增强铝基梯度复合材料,研究了其疲劳裂纹扩展行为及其亚临界裂纹扩展行为。疲劳裂纹从30%SiC层向5%SiC层扩展时,发生了裂纹扩展延滞;而在静载下,当裂纹从30%SiC层向5%SiC层扩展时,随着裂纹长度的增加其裂纹扩展阻力增大。

Abstract

The SiC_p/Al graded composite was fabricated by powder metallurgy processing and its fatigue crack growth behavior and subcritical crack propagation behavior were investigated. Fatigue crack growth was in direction of from 30% to 5%SiC layer under sinusoidal wave-form. The retardation of fatigue crack growth was found. Under monotonic loading, it was found that crack resistance increases with crack extension when crack growth was in direction of from 30% to 5%SiC layers.

导出引用

许富民, 朱世杰, 赵杰, 王富岗. SiC_p/Al梯度复合材料疲劳裂纹扩展和亚临界扩展行为[J]. 材料工程, 2003, 0(10): 11-13

XU Fu-min, ZHU Shi-jie, ZHAO Jie, WANG Fu-gang. Fatigue Crack Growth and Subcritical Propagation Behavior in a SiC_p/Al Matrix Functionally Graded-composite[J]. Journal of Materials Engineering, 2003, 0(10): 11-13

中图分类号： O346.2

参考文献

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