On size effects on fatigue properties of metal foils at micrometer scales

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	On size effects on fatigue properties of metal foils at micrometer scales
	C. Y. Dai; B. Zhang; J. Xu; G. P. Zhang
	2013
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	575 页码:217-222
摘要	Fatigue behaviors of two types of polycrystalline Cu foils (i.e. foil thickness (t)-constant and grain size(d)-constant foils) with different ratios of the foil thickness to the grain size (t/d) at micrometer scales were investigated. The experimental results reveal that under total strain control the fatigue life of the foils strongly depends on the tensile plasticity of the foils and the coupled effect of t and d. The large tensile plasticity leads to the high fatigue strength of the Cu foils. The contribution of surface grains to fatigue properties becomes more and more important as decreasing t/d. The coupled effects of the geometrical scale and the microstructural scale on fatigue damage formation and crack growth resistance are analyzed and the basic mechanisms are elucidated. (C) 2013 Elsevier B.V. All rights reserved.
部门归属	[dai, c. y. ; xu, j. ; zhang, g. p.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [zhang, b.] northeastern univ, minist educ, key lab anisotropy & texture mat, shenyang 110819, peoples r china. ; zhang, gp (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; gpzhang@imr.ac.cn
关键词	Copper Foil Strength Plasticity Fatigue Size Effect Alloy Thin-film Fracture Properties Crack Growth Copper Foils Wires Mems Nanoscale Strength Behavior Tests
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/321006/71181
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. Y. Dai,B. Zhang,J. Xu,et al. On size effects on fatigue properties of metal foils at micrometer scales[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2013,575:217-222.
APA	C. Y. Dai,B. Zhang,J. Xu,&G. P. Zhang.(2013).On size effects on fatigue properties of metal foils at micrometer scales.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,575,217-222.
MLA	C. Y. Dai,et al."On size effects on fatigue properties of metal foils at micrometer scales".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 575(2013):217-222.