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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
Source PublicationINTERMETALLICS
ISSN0966-9795
Volume86Pages:25-32
AbstractThe 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.
description.department[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
KeywordMetallic Glasses Fracture Shear Band Yield Behavior Mechanical Testing
Subject AreaChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51571192]; JHU [US-NSF-DMR-1505621]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78071
Collection中国科学院金属研究所
Corresponding AuthorXu, J (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
Recommended Citation
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.
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