Spiral fracture in metallic glasses and its correlation with failure criterion

doi:10.1016/j.actamat.2015.08.008

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	Spiral fracture in metallic glasses and its correlation with failure criterion
	Lei XQ(雷现奇); Wei YJ(魏宇杰); Wei BC(魏炳忱); Wang WH(汪卫华); Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
发表期刊	ACTA MATERIALIA
	2015-10-15
卷号	99 页码:206-212
ISSN	1359-6454
摘要	We report the observation of spiral fracture of the metallic glass Zr41Ti14Cu12.5Ni10Be22.5 (at.%) subjected to both shear and normal stresses. The spiral angle (that between the spiral line and the loading axis) increases as we gradually change the normal stress from tensile (positive) to compressive (negative). The spiral nature of the fractured surface leads to a left-handed helix fractography pattern in tension, and a right-handed helix in compression. The Mohr Coulomb type of failure is essential for the unique spiral fracture. The use of spiral angles resulted from torsion tension experiments provide another novel experimental strategy to examine the failure criterion as well as stress state dependence of deformation mechanisms which lead to failure in metallic glasses. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	Metallic Glasses Failure Criterion Mohr-coulomb Spiral Fracture
DOI	10.1016/j.actamat.2015.08.008
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000362145400022
关键词[WOS]	HYDROSTATIC-PRESSURE ; MECHANICAL-BEHAVIOR ; AMORPHOUS-ALLOYS ; YIELD CRITERION ; DEFORMATION ; FLOW ; INDENTATION ; STRAIN ; LOCALIZATION ; COMPRESSION
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者	The authors acknowledge support from National Natural Science Foundation of China (NSFC) (11425211, 11021262, 11272327), MOST 973 of China (2012CB937500). The authors are grateful to Prof. J. Lewandowski and Prof. A. Lindsay Greer for fruitful discussion.
课题组名称	LNM微结构计算力学（筹）
论文分区	一类
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/58409
专题	非线性力学国家重点实验室
通讯作者	Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Lei XQ,Wei YJ,Wei BC,et al. Spiral fracture in metallic glasses and its correlation with failure criterion[J]. ACTA MATERIALIA,2015,99:206-212.
APA	Lei XQ,Wei YJ,Wei BC,Wang WH,&Wei, YJ .(2015).Spiral fracture in metallic glasses and its correlation with failure criterion.ACTA MATERIALIA,99,206-212.
MLA	Lei XQ,et al."Spiral fracture in metallic glasses and its correlation with failure criterion".ACTA MATERIALIA 99(2015):206-212.

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