Failure of Zr61Ti2Cu25Al12 bulk metallic glass under torsional loading

IMR OpenIR

	Failure of Zr61Ti2Cu25Al12 bulk metallic glass under torsional loading
	Song, Zhen-Qiang; Ma, Evan; Xu, Jian; Xu, J (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
	2017-07-01
发表期刊	INTERMETALLICS
ISSN	0966-9795
卷号	86 页码:25-32
摘要	The torsional properties of the Zr61Ti2Cu25Al12 BMG have been tested using cylinder samples, including the shear yield strength, shear elastic strain limit and shear modulus. Under torsional loading, the BMG fails via a major shear band, without obvious macroscopic plasticity on the specimen surface. The shear band maintained stable propagation by a distance of similar to 300 mu m (similar to 20% of cylinder radius) before final catastrophic failure, owing to the constraint of stress gradient along the radial direction. The combined tensile, compressive and torsional properties of the Zr61Ti2Cu25Al12 BMG suggest that recent ellipse criterion and eccentric ellipse criterion are more appropriate than other well-known ones in describing the yield behavior of this BMG. The cooperative shear model underestimates the shear elastic strain limit, because of its default assumption that the yielding behavior follows the Tresca yield criterion. (C) 2017 Elsevier Ltd. All rights reserved.; The torsional properties of the Zr61Ti2Cu25Al12 BMG have been tested using cylinder samples, including the shear yield strength, shear elastic strain limit and shear modulus. Under torsional loading, the BMG fails via a major shear band, without obvious macroscopic plasticity on the specimen surface. The shear band maintained stable propagation by a distance of similar to 300 mu m (similar to 20% of cylinder radius) before final catastrophic failure, owing to the constraint of stress gradient along the radial direction. The combined tensile, compressive and torsional properties of the Zr61Ti2Cu25Al12 BMG suggest that recent ellipse criterion and eccentric ellipse criterion are more appropriate than other well-known ones in describing the yield behavior of this BMG. The cooperative shear model underestimates the shear elastic strain limit, because of its default assumption that the yielding behavior follows the Tresca yield criterion. (C) 2017 Elsevier Ltd. All rights reserved.
部门归属	[song, zhen-qiang ; xu, jian] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china ; [ma, evan] johns hopkins univ, dept mat sci & engn, baltimore, md 21218 usa
关键词	Metallic Glasses Fracture Shear Band Yield Behavior Mechanical Testing
学科领域	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者	National Natural Science Foundation of China [51571192]; JHU [US-NSF-DMR-1505621]
收录类别	SCI
语种	英语
WOS记录号	WOS:000401736600005
引用统计	被引频次：12[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/321006/78071
专题	中国科学院金属研究所
通讯作者	Xu, J (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Song, Zhen-Qiang,Ma, Evan,Xu, Jian,et al. Failure of Zr61Ti2Cu25Al12 bulk metallic glass under torsional loading[J]. INTERMETALLICS,2017,86:25-32.
APA	Song, Zhen-Qiang,Ma, Evan,Xu, Jian,&Xu, J .(2017).Failure of Zr61Ti2Cu25Al12 bulk metallic glass under torsional loading.INTERMETALLICS,86,25-32.
MLA	Song, Zhen-Qiang,et al."Failure of Zr61Ti2Cu25Al12 bulk metallic glass under torsional loading".INTERMETALLICS 86(2017):25-32.