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颗粒尺寸对SiC_P/Al复合材料疲劳裂纹扩展速率的影响 被引量：1

Effects of SiC Particle Size on Fatigue Crack Propagation Rate in SiC_P/Al Composites
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摘要 研究了轴向载荷下,对3种S iC粒子(5,20和60μm)增强的2024铝合金复合材料疲劳裂纹扩展速率及颗粒尺寸的影响。复合材料疲劳裂纹扩展速率随颗粒尺寸增加而减小。去除裂纹闭合影响后,3种复合材料间疲劳裂纹扩展速率差消除了,但是复合材料的裂纹扩展速率低于2024铝合金的。 A study of effects of three different sizes of silicon carbide particles on fatigue crack propagation （FCP） rate in powder metallurgy 2024 aluminum alloy matrix composites reinforced with silicon carbide particles was conducted. The FCP rates of the composites were decreased with particle size increased. After removing the effect of crack closure, the differences in FCP rate between the composites of different particle sizes were eliminated. The composites showed lower FCP rates than those for the corresponding unreinforced alloy.
作者 陈振中 高金贺
机构地区 沈阳航空工业学院工程力学系
出处 《飞机设计》 2006年第1期8-10,共3页 Aircraft Design
基金 辽宁省自然科学基金资助项目(20032007) 教育部归国博士基金资助项目(04JYB01)
关键词 金属复合材料 疲劳裂纹扩展速率 SIC颗粒 metal matrix composite fatigue crack propagation rate SiC particle
分类号 TG113.255 [金属学及工艺—物理冶金]
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参考文献8

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同被引文献19

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飞机设计
2006年 第1期

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