| Zr61Ti2Cu25Al12 bulk metallic glass under three-point bending: Characteristic of large-deflection deformation | |
| Li, Diao-Feng1,2; Shen, Yong1; Xu, Jian1 | |
| Corresponding Author | Xu, Jian(jianxu@imr.ac.cn) |
| 2021-05-01 | |
| Source Publication | INTERMETALLICS
 |
| ISSN | 0966-9795 |
| Volume | 132Pages:13 |
| Abstract | With 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. |
| Keyword | Metallic glasses Three-point bending Large deflection Flexibility Bending proof strength Compliant mechanisms |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.intermet.2021.107156 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51571192] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000632192700001 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/161938 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Xu, Jian |
| Affiliation | 1.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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