Tensile and Isothermal Fatigue Behaviors of Mg-12Gd-3Y-0.5Zr Alloy at High Temperature

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	Tensile and Isothermal Fatigue Behaviors of Mg-12Gd-3Y-0.5Zr Alloy at High Temperature
	X. M. Yang; H. J. Yang; F. Yang; S. M. Yin; W. Wang; S. X. Li; Q. D. Wang
	2009
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	25 期号:6 页码:731-737
摘要	Tensile and isothermal fatigue tests were carried out on an as-rolled Mg-12Gd-3Y-0.5Zr alloy and its heat-treated counterpart at different temperatures. The experimental results show that the ultimate tensile strengths of two alloys decrease very slowly with increasing temperature up to 200 degrees C. The ultimate tensile strength of heat-treated Mg-12Gd-3Y-0.5Zr is slight lower than that of as-rolled counterpart; however, the fatigue strength of heat-treated alloy is higher. The mechanism of fatigue failure was investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It shows that cyclic slip combined with environmental effect may be the main crack initiation mechanism.
部门归属	[yang, xiaoming; yang, huajie; yang, fan; yin, shuming; wang, wei; li, shouxin] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [wang, qudong] shanghai jiao tong univ, natl engn res ctr light alloys net forming, shanghai 200020, peoples r china.;yang, xm (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;xmyang@imr.ac.cn
关键词	Mg-12gd-3y-0.5zr Isothermal Fatigue Fatigue Strength Tensile Strength Y-zr Alloys Magnesium Alloy Mechanical-properties Die-cast Crack Initiation Creep-behavior Microstructure Deformation Mg-3-percent-al-1-percent-zn Earth
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WOS记录号	WOS:000272784100003
引用统计	被引频次：7[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/321006/32494
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. M. Yang,H. J. Yang,F. Yang,et al. Tensile and Isothermal Fatigue Behaviors of Mg-12Gd-3Y-0.5Zr Alloy at High Temperature[J]. Journal of Materials Science & Technology,2009,25(6):731-737.
APA	X. M. Yang.,H. J. Yang.,F. Yang.,S. M. Yin.,W. Wang.,...&Q. D. Wang.(2009).Tensile and Isothermal Fatigue Behaviors of Mg-12Gd-3Y-0.5Zr Alloy at High Temperature.Journal of Materials Science & Technology,25(6),731-737.
MLA	X. M. Yang,et al."Tensile and Isothermal Fatigue Behaviors of Mg-12Gd-3Y-0.5Zr Alloy at High Temperature".Journal of Materials Science & Technology 25.6(2009):731-737.