EFFECT OF SIC PARTICLES ON FATIGUE CRACK-PROPAGATION IN SIC/AL COMPOSITES

被引：15

作者：

LI, K ^{[1
]}

JIN, XD ^{[1
]}

YAN, BD ^{[1
]}

LI, PX ^{[1
]}

机构：

[1] SHANGHAI JIAO TONG UNIV,INST COMPOSITE MAT,SHANGHAI 200030,PEOPLES R CHINA

来源：

COMPOSITES | 1992年 / 23卷 / 01期

关键词：

COMPOSITE MATERIALS; FATIGUE; HEAT TREATMENT; FATIGUE CRACK PROPAGATION RATE; CRACK PATH; SHIELDING EFFECT; SIC PARTICLES; ALUMINUM ALLOY MATRIX;

D O I：

10.1016/0010-4361(92)90286-4

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Fatigue crack propagation has been studied in two SiC particulate-reinforced aluminium-matrix composites with differing matrix alloys and composite heat treatments. Results indicate that the fatigue crack propagation rate (FCPR) of aged SiC/LY12 Al composites decreases with increasing volume fraction (V(f)) of SiC particles; for composites containing 15 volume % SiC particles in an LY12 Al matrix the FCPR is independent of heat treatment (ageing or annealing). Annealed SiC/5083 Al composite has a higher FCPR than annealed SiC/LY12 Al. The influence of SiC particles on crack path is briefly discussed.

引用

页码：54 / 58

页数：5

共 6 条

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