Higher fatigue cracking resistance of twin boundaries than grain boundaries in Cu bicrystals

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	Higher fatigue cracking resistance of twin boundaries than grain boundaries in Cu bicrystals
	L. L. Li; Z. J. Zhang; P. Zhang; Z. F. Zhang
	2011
发表期刊	Scripta Materialia
ISSN	1359-6462
卷号	65 期号:6 页码:505-508
摘要	Two kinds of Cu bicrystals, with a high-energy grain boundary (GB) and a coherent twin boundary (TB) parallel to the loading direction respectively, were cyclically deformed to reveal the fatigue cracking mechanisms. It is shown that intergranular fatigue cracking occurred firstly in the bicrystal with the GB, while the persistent slip bands became the preferential cracking sites in the bicrystal with TB. These results indicate that the TB has an intrinsically higher fatigue cracking resistance than the GB. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[li, l. l.; zhang, z. j.; zhang, p.; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;zhang, zf (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;zhfzhang@imr.ac.cn
关键词	Bicrystal Twin Boundary Grain Boundary Fatigue Cracking Persistent Slip Bands Centered-cubic Metals Cyclic Deformation Maximum Strength Copper Dislocation Polycrystals Nucleation Initiation Amplitude Mechanism
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WOS记录号	WOS:000293932900012
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/321006/30473
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. L. Li,Z. J. Zhang,P. Zhang,et al. Higher fatigue cracking resistance of twin boundaries than grain boundaries in Cu bicrystals[J]. Scripta Materialia,2011,65(6):505-508.
APA	L. L. Li,Z. J. Zhang,P. Zhang,&Z. F. Zhang.(2011).Higher fatigue cracking resistance of twin boundaries than grain boundaries in Cu bicrystals.Scripta Materialia,65(6),505-508.
MLA	L. L. Li,et al."Higher fatigue cracking resistance of twin boundaries than grain boundaries in Cu bicrystals".Scripta Materialia 65.6(2011):505-508.