Low-cycle Fatigue Behaviors of an As-extruded Mg-12%Gd-3%Y-0.5%Zr Alloy

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	Low-cycle Fatigue Behaviors of an As-extruded Mg-12%Gd-3%Y-0.5%Zr Alloy
	S. M. Yin; S. X. Li
	2013
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	29 期号:8 页码:775-780
摘要	Cyclic deformation and fatigue behaviors of Mg-12%Gd-3%Y-0.5%Zr (wt%, GW123K) alloy were investigated at room temperature under axial cyclic loading in strain controlled condition. It is shown that conventional extruded GW123K alloy maintained cyclic stability at strain amplitudes ranging from 2 x 10(-3) to 10(-2). The pronounced symmetric hysteresis loops were also observed during cyclic loading. Fracture surface observations indicated that fatigue cracks mainly initiated at large Gd-riched phase or at inclusion clusters at surface or subsurface, and grain boundary (GB) and slip bands (SBs) are also preferential sites for micro-crack incubation.
部门归属	[yin, s. m.] shenyang univ chem technol, shenyang 110142, peoples r china. [li, s. x.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; yin, sm (reprint author), shenyang univ chem technol, shenyang 110142, peoples r china. ; yin_shuming@yeah.net
关键词	Magnesium Alloy Low-cycle Fatigue Cyclic Stabilization Fatigue Crack Fractography Az31 Magnesium Alloy Mechanical Anisotropy Am60b Magnesium High-strength Zn Alloy Deformation Life
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71650
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. M. Yin,S. X. Li. Low-cycle Fatigue Behaviors of an As-extruded Mg-12%Gd-3%Y-0.5%Zr Alloy[J]. Journal of Materials Science & Technology,2013,29(8):775-780.
APA	S. M. Yin,&S. X. Li.(2013).Low-cycle Fatigue Behaviors of an As-extruded Mg-12%Gd-3%Y-0.5%Zr Alloy.Journal of Materials Science & Technology,29(8),775-780.
MLA	S. M. Yin,et al."Low-cycle Fatigue Behaviors of an As-extruded Mg-12%Gd-3%Y-0.5%Zr Alloy".Journal of Materials Science & Technology 29.8(2013):775-780.