Fatigue cracking at twin boundary: Effect of dislocation reactions

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	Fatigue cracking at twin boundary: Effect of dislocation reactions
	Z. J. Zhang; L. L. Li; P. Zhang; Z. F. Zhang
	2012
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	101 期号:1
摘要	This Letter addresses a new finding of the connection between the macroscopic fatigue cracking behaviors of twin boundaries (TBs) and the microscopic TB-dislocation interactions. According to the difference in crystallography beside TBs, slipping dislocations usually interact with TBs in different modes during plastic deformation. In this study, fatigue cracking behaviors at the TBs in Cu and Cu alloys were investigated and compared theoretically and experimentally based on these different interaction modes. The results reveal that the TB-dislocation interactions strongly affect the interfacial strength of TBs through influencing the damage degree by the penetrated dislocations during low-cycle fatigue tests. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4732144]
部门归属	[zhang, z. j.; li, l. l.; zhang, p.; zhang, z. f.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;zhang, zf (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;zhfzhang@imr.ac.cn
关键词	Centered-cubic Metals Lattice Dislocations Grain-boundaries Deformation Nanoscale Mechanism Strength Energy Copper Slip
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60474
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. J. Zhang,L. L. Li,P. Zhang,et al. Fatigue cracking at twin boundary: Effect of dislocation reactions[J]. Applied Physics Letters,2012,101(1).
APA	Z. J. Zhang,L. L. Li,P. Zhang,&Z. F. Zhang.(2012).Fatigue cracking at twin boundary: Effect of dislocation reactions.Applied Physics Letters,101(1).
MLA	Z. J. Zhang,et al."Fatigue cracking at twin boundary: Effect of dislocation reactions".Applied Physics Letters 101.1(2012).