Revealing the shear band cracking mechanism in metallic glass by X-ray tomography

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	Revealing the shear band cracking mechanism in metallic glass by X-ray tomography
	Qu, R. T. ; Wang, S. G. ; Wang, X. D. ; Liu, Z. Q. ; Zhang, Z. F.
刊名	SCRIPTA MATERIALIA
	2017-05-01
卷号	133 页码:24-28
关键词	Metallic glass Shear band Cracking X-ray tomography Compression
ISSN号	1359-6462
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, Peoples R China.
中文摘要	The mechanism of shear band (SB) cracking or cavitating under the stress state free from negative pressure is one of long-standing unsolved issues in metallic glass (MG). Here we show key findings including the 3D imaging on the evolution of SB cracking during compressing a ductile MG. Discontinuous and non-coplanar cracks with long narrow-thin morphology were observed in a shear-banding affected zone that is much thicker than the SB core. The results demonstrated that the SB cracking originates possibly from (1) the creation and coalescence of excess free volume, (2) the shearing of non-planar SB, and/or (3) the SB interaction. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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/321006/78173]
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	Qu, R. T.,Wang, S. G.,Wang, X. D.,et al. Revealing the shear band cracking mechanism in metallic glass by X-ray tomography[J]. SCRIPTA MATERIALIA,2017,133:24-28.
APA	Qu, R. T.,Wang, S. G.,Wang, X. D.,Liu, Z. Q.,&Zhang, Z. F..(2017).Revealing the shear band cracking mechanism in metallic glass by X-ray tomography.SCRIPTA MATERIALIA,133,24-28.
MLA	Qu, R. T.,et al."Revealing the shear band cracking mechanism in metallic glass by X-ray tomography".SCRIPTA MATERIALIA 133(2017):24-28.