Effect of loading rate on failure in Zr-based bulk metallic glass

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	Effect of loading rate on failure in Zr-based bulk metallic glass
	Y. F. Xue; H. N. Cai; L. Wang; F. C. Wang; H. F. Zhang
	2008
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	473 期号:1-2 页码:105-110
摘要	The uniaxial compressive behavior of Zr38Ti17Cu10.5Co12Be22.5 bulk metallic glass was investigated over a wide strain rate range between 10(-4) and 10(2) s(-1) at room temperature. Fracture stress as well as strain was found to decrease with increasing strain rate. Specimens subjected to quasistatic loading developed mature shear bands and substantial plastic deformations, fracture surfaces were relatively smooth and revealed a well developed and uniformly distributed mixture of vein-like patterns and river-like patterns. The dynamically loaded specimens, on the other hand, fractured along one dominant shear band with relatively rough fracture surfaces, such as non-uniformly distributed vein-like patterns, micro shear bands, microcracks and liquid droplets. The experimental results demonstrate that the fracture behavior of the present bulk metallic glass is strongly affected by the strain rate. A negative strain rate sensitivity was found and discussed in detail. (C) 2007 Elsevier B.V. All rights reserved.
部门归属	[xue, y. f.; cai, h. n.; wang, l.; wang, f. c.] beijing inst technol, sch mat sci & engn, beijing 100081, peoples r china. [zhang, h. f.] chinese acad sci, shenyang natl lab mat sci, met res inst, shenyang 110016, peoples r china.;wang, l (reprint author), beijing inst technol, sch mat sci & engn, beijing 100081, peoples r china;wanglu@bit.edu.cn
关键词	Bulk Metallic Glass (Bmg) Strain Rate Sensitivity Fracture Behavior Compressive Deformation Shear Bands Strain-rate Compressive Behavior Fracture-toughness Amorphous-alloys Deformation Nanoindentation Flow Propagation Composites
URL	查看原文
WOS记录号	WOS:000252902500014
引用统计	被引频次：71[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/321006/33258
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. F. Xue,H. N. Cai,L. Wang,et al. Effect of loading rate on failure in Zr-based bulk metallic glass[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2008,473(1-2):105-110.
APA	Y. F. Xue,H. N. Cai,L. Wang,F. C. Wang,&H. F. Zhang.(2008).Effect of loading rate on failure in Zr-based bulk metallic glass.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,473(1-2),105-110.
MLA	Y. F. Xue,et al."Effect of loading rate on failure in Zr-based bulk metallic glass".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 473.1-2(2008):105-110.