Fatigue crack propagation behavior of an as-extruded magnesium alloy AZ80

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	Fatigue crack propagation behavior of an as-extruded magnesium alloy AZ80
	R. C. Zeng; Y. B. Xu; W. Ke; E. H. Han
	2009
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	509 期号:1-2 页码:40915
摘要	An investigation of the fatigue crack propagation (FCP) behavior of the as-extruded magnesium alloy AZ80 was made by means of the constant load amplitude fatigue test, scanning electron microscope (SEM), transmission electron microscopy (TEM) and Auger electron spectroscopy (AES). The results demonstrated that loading frequency had a significant influence on fatigue crack propagation rate, and it increased with a decrease in loading frequency and an increase in load ratio. Crack closure induced by plasticity rather than oxide film might play a predominant role in fatigue crack propagation. The coalescence of the microvoids was proposed to be the mechanism of fatigue crack propagation of the extruded magnesium alloy AZ80. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[zeng, r. c.] chongqing inst technol, sch mat sci & engn, chongqing 400050, peoples r china. [xu, y. b.; ke, w.; han, e. h.] chinese acad sci, inst met res, environm corros ctr, shenyang 110016, peoples r china.;zeng, rc (reprint author), chongqing inst technol, sch mat sci & engn, xingsheng rd 4, chongqing 400050, peoples r china;rczeng2001@yahoo.com.cn
关键词	Fatigue Crack Propagation Magnesium Alloy Frequency Load Ratio Oxide Film Crack Closure Pure Magnesium Oxide-films Corrosion
URL	查看原文
WOS记录号	WOS:000265995700001
引用统计	被引频次：33[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/321006/32521
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	R. C. Zeng,Y. B. Xu,W. Ke,et al. Fatigue crack propagation behavior of an as-extruded magnesium alloy AZ80[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2009,509(1-2):40915.
APA	R. C. Zeng,Y. B. Xu,W. Ke,&E. H. Han.(2009).Fatigue crack propagation behavior of an as-extruded magnesium alloy AZ80.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,509(1-2),40915.
MLA	R. C. Zeng,et al."Fatigue crack propagation behavior of an as-extruded magnesium alloy AZ80".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 509.1-2(2009):40915.