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Zr61Ti2Cu25Al12 bulk metallic glass under three-point bending: Characteristic of large-deflection deformation
Li, Diao-Feng1,2; Shen, Yong1; Xu, Jian1
Corresponding AuthorXu, Jian(jianxu@imr.ac.cn)
2021-05-01
Source PublicationINTERMETALLICS
ISSN0966-9795
Volume132Pages:13
AbstractWith three-point bending (3 PB) approach, nonlinear large-deflection deformation in bending was investigated for Zr61Ti2Cu25Al12 (ZT1) metallic glass (MG) beams with varying thickness from 1 mm to 100 mu m. It was shown that higher flexibility is achievable by increasing the span-to-thickness ratio, which is desired for flexible members subjected to large-deflection performance. Moreover, yielding event of the MG beams in largedeflection situation can be captured via a conversion of load-deflection response into the non-dimensional form. Meanwhile, intrinsic sources responsible for the buckling events can be justified in terms of theoretical analytical solutions in mechanics. With monotonic bending and nonlinear bending theory, flexural yield strength of ZT1 MG with a thickness of 100 mu m was determined to be 2050 MPa. Its bending proof strength at 0.005% permanent strain (sigma(p,0.005%)) was determined to be 1900 MPa, indicating that the beam-thickness effect on sigma(p,0.005%) is absent at least when the thickness was reduced from 1 mm down to 100 ?m. As noticed, the response at sigma(p,0.005%) physically correlates with the propagation stress of embryonic shear bands, instead of the nucleation stress. In comparison with the current candidate materials in compliant mechanisms, ZT1 MG exhibits significant advantages in the components that the large-deflection elastic bending and high elastic-strain energy storage are desired.
KeywordMetallic glasses Three-point bending Large deflection Flexibility Bending proof strength Compliant mechanisms
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.intermet.2021.107156
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51571192]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000632192700001
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161938
Collection中国科学院金属研究所
Corresponding AuthorXu, Jian
Affiliation1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li, Diao-Feng,Shen, Yong,Xu, Jian. Zr61Ti2Cu25Al12 bulk metallic glass under three-point bending: Characteristic of large-deflection deformation[J]. INTERMETALLICS,2021,132:13.
APA Li, Diao-Feng,Shen, Yong,&Xu, Jian.(2021).Zr61Ti2Cu25Al12 bulk metallic glass under three-point bending: Characteristic of large-deflection deformation.INTERMETALLICS,132,13.
MLA Li, Diao-Feng,et al."Zr61Ti2Cu25Al12 bulk metallic glass under three-point bending: Characteristic of large-deflection deformation".INTERMETALLICS 132(2021):13.
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