Evolution of shear-band cracking in metallic glass under cyclic compression

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	Evolution of shear-band cracking in metallic glass under cyclic compression
	Wang, Xiao Di ; Qu, Rui Tao ; Liu, Zeng Qian ; Zhang, Zhe Feng
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2017-06-01
卷号	696 页码:267-272
关键词	Metallic glass Shear band Fatigue crack Cyclic compression
ISSN号	0921-5093
通讯作者	Qu, RT ; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China. ; Zhang, ZF (reprint author), Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China.
中文摘要	The evolution of shear-band cracking in a typical Zr-based metallic glass under high stress level was explored by interrupted cyclic compression-compression experiments. It was found that the fatigue crack was obviously easier to form along the shear band under cyclic compression than under monotonic loading. Furthermore, the critical shear offset for fatigue crack propagation was obtained, which increases firstly and then decreases, depending on the competition between the accumulation of dilatation damage in the shear band and the release of stress concentration caused by plastic deformation. Moreover, to elucidate the cracking mechanisms, a concept of "fatigue shear-band propagation rate", an analogy with the fatigue crack propagation rate, is proposed and characterized. These results may enhance the understanding on fatigue damage mechanism of MG and offer quantitative guidance on future design for MG and MG matrix composites with excellent fatigue property.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
收录类别	SCI
资助信息	National Natural Science Foundation of China (NSFC) [51331007, 51301174, 51501190]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78094]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Wang, Xiao Di,Qu, Rui Tao,Liu, Zeng Qian,et al. Evolution of shear-band cracking in metallic glass under cyclic compression[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,696:267-272.
APA	Wang, Xiao Di,Qu, Rui Tao,Liu, Zeng Qian,&Zhang, Zhe Feng.(2017).Evolution of shear-band cracking in metallic glass under cyclic compression.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,696,267-272.
MLA	Wang, Xiao Di,et al."Evolution of shear-band cracking in metallic glass under cyclic compression".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 696(2017):267-272.