| Rejuvenation-deformation relationship of a well-aged metallic glass during Newtonian to non-Newtonian flow | |
Gao Y(高洋); Ding G(丁淦); Yang C(杨成); Zhang, BB; Shi, CJ; Dai LH(戴兰宏) ; Jiang MQ(蒋敏强)
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| Source Publication | JOURNAL OF NON-CRYSTALLINE SOLIDS
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| 2023-09-01 | |
| Volume | 615Pages:122410 |
| ISSN | 0022-3093 |
| Abstract | Stress overshoot is a sign of structural rejuvenation of metallic glass, which usually occurs in non-Newtonian flow with large strain rate. Here we show a heavily-aged Zr-based metallic glass that rejuvenates by low-strain-rate Newtonian flow without showing any stress overshoot. Its rejuvenation does not increase the energy level of its basin of potential energy landscape, but reduces the basin's mechanical stability. Synchrotron X-ray total scattering gives direct evidence that under Newtonian flow, the rejuvenation is contributed by complex structural rearrangements over short- and medium-range order scales. We further find that due to the structurally inhomogeneous response, there is an optimal strain rate for rejuvenation, above which the energy level decreases, but the characteristic size of the medium-range order continues to increase. Thus, the mechanical stability and structural disorder do not decrease synchronously. Our findings refresh the understanding of the relationship between mechanical deformation and structural rejuvenation in metallic glasses. |
| Keyword | Metallic glasses Structural rejuvenation Plastic flow Strain rate Structural rearrangement |
| DOI | 10.1016/j.jnoncrysol.2023.122410 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001016748500001 |
| WOS Research Area | Materials Science, Ceramics ; Materials Science, Multidisciplinary |
| Funding Organization | General Project [11972345] ; Basic Science Center for Multiscale Problems in Nonlinear Mechanics [11988102] ; National Outstanding Youth Science Fund Project of National Natural Science Foundation of China (NSFC) [12125206] ; National Key Basic Research Program of China [2020YFA0406101] |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Jiang, MQ (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Jiang, MQ (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92396 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.{Gao Y., Ding G., Yang C., Dai L. H., Jiang M. Q.} Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing 100190 Peoples R China 2.{Gao Y., Yang C., Dai L. H., Jiang M. Q.} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 3.{Zhang B. B., Shi C. J.} Chinese Acad Sci Inst High Energy Phys Beijing 100049 Peoples R China |
| Recommended Citation GB/T 7714 | Gao Y,Ding G,Yang C,et al. Rejuvenation-deformation relationship of a well-aged metallic glass during Newtonian to non-Newtonian flow[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2023,615:122410. |
| APA | 高洋.,丁淦.,杨成.,Zhang, BB.,Shi, CJ.,...&蒋敏强.(2023).Rejuvenation-deformation relationship of a well-aged metallic glass during Newtonian to non-Newtonian flow.JOURNAL OF NON-CRYSTALLINE SOLIDS,615,122410. |
| MLA | 高洋,et al."Rejuvenation-deformation relationship of a well-aged metallic glass during Newtonian to non-Newtonian flow".JOURNAL OF NON-CRYSTALLINE SOLIDS 615(2023):122410. |
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| Jp2023Fa195.pdf（1726KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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