Effect of stress ratio on fatigue crack propagation in a functionally graded metal matrix composite

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	Effect of stress ratio on fatigue crack propagation in a functionally graded metal matrix composite
	F. M. Xu; S. J. Zhu; J. Zhao; M. Qi; F. G. Wang; S. X. Li; Z. G. Wang
	2004
发表期刊	Composites Science and Technology
ISSN	0266-3538
卷号	64 期号:12 页码:1795-1803
摘要	A functionally graded metal matrix composite, gradually distributed SiC particulate reinforced Al matrix composite, was fabricated by powder metallurgy processing. Fatigue crack growth tests of the composite were conducted in crack growth direction of from 5% to 30% SiC volume fraction layers under sinusoidal wave-form with stress ratios of 0.1, 0.3, 0.5 and 0.7, respectively. The fatigue crack growth rates increase with an increase in stress ratio. This is interpreted by crack closure mechanism. The retardation of fatigue crack growth was found when crack propagated from low-volume fraction of SiC layer to high-volume fraction of SiC layer. The crack deflection and branching at interfaces were observed, which decreased crack growth rates. (C) 2004 Elsevier Ltd. All rights reserved.
部门归属	dalian univ technol, dept mat engn, dalian 116024, peoples r china. univ tokyo, inst ind sci, tokyo 1538505, japan. chinese acad sci, shenyang natl lab mat sci, met res inst, shenyang 110016, peoples r china.;wang, fg (reprint author), dalian univ technol, dept mat engn, dalian 116024, peoples r china;fgwang@dlut.edu.cn
关键词	Functionally Graded Composite Fatigue Crack Growth Stress Ratio Fracture Surface Reinforced Aluminum-alloy Sic-particulate Ceramic Composites Volume Fraction Growth-behavior Particle-size Whisker Performance Tensile Interfaces
URL	查看原文
WOS记录号	WOS:000222886200005
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35660
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. M. Xu,S. J. Zhu,J. Zhao,et al. Effect of stress ratio on fatigue crack propagation in a functionally graded metal matrix composite[J]. Composites Science and Technology,2004,64(12):1795-1803.
APA	F. M. Xu.,S. J. Zhu.,J. Zhao.,M. Qi.,F. G. Wang.,...&Z. G. Wang.(2004).Effect of stress ratio on fatigue crack propagation in a functionally graded metal matrix composite.Composites Science and Technology,64(12),1795-1803.
MLA	F. M. Xu,et al."Effect of stress ratio on fatigue crack propagation in a functionally graded metal matrix composite".Composites Science and Technology 64.12(2004):1795-1803.