Tensile deformation and fracture behaviors of high purity polycrystalline zinc

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	Tensile deformation and fracture behaviors of high purity polycrystalline zinc
	J. H. Liu; C. X. Huang; S. D. Wu; Z. F. Zhang
	2008
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	490 期号:1-2 页码:117-125
摘要	The damage and fracture behaviors of high purity polycrystalline zinc with two grain sizes during tension were investigated experimentally at different strain rates. It was found that specimens with coarse grains (similar to 1 mm) showed serrated flow behavior and failed in intermittent brittle cleavage fracture, while specimens with fine grains (similar to 70 mu m) showed no cleavage crack initiation before necking even at high strain rate. It was observed that the fracture process of the fine-grained specimen was highly related to strain rates. With the strain rate increasing, the damage mechanism transformed from formation of tearing cracks along interfaces (including grain boundaries, twin boundaries and kink band boundaries) and cavity coalescence into abrupt quasi-cleavage fracture. Based on the observation, the inter-crystalline fracture of zinc was investigated, and the damage and fracture behaviors of polycrystalline zinc during tension at room temperature were discussed in general. (c) 2008 Elsevier B.V. All rights reserved.
部门归属	[liu, j. h.; huang, c. x.; wu, s. d.; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;liu, jh (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;jhliu@imr.ac.cn
关键词	Zinc Tension Fracture Cleavage Cavity Galvanized Steel Sheets Single-crystals Damage Mechanisms Superplasticity Accommodation Bicrystals Coatings Cleavage Cracks Creep
URL	查看原文
WOS记录号	WOS:000258389200016
引用统计	被引频次：34[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/321006/32950
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. H. Liu,C. X. Huang,S. D. Wu,et al. Tensile deformation and fracture behaviors of high purity polycrystalline zinc[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2008,490(1-2):117-125.
APA	J. H. Liu,C. X. Huang,S. D. Wu,&Z. F. Zhang.(2008).Tensile deformation and fracture behaviors of high purity polycrystalline zinc.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,490(1-2),117-125.
MLA	J. H. Liu,et al."Tensile deformation and fracture behaviors of high purity polycrystalline zinc".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 490.1-2(2008):117-125.