Rejuvenation-deformation relationship of a well-aged metallic glass during Newtonian to non-Newtonian flow
文献类型：期刊论文
| 作者 | 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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| 刊名 | JOURNAL OF NON-CRYSTALLINE SOLIDS
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 615页码:122410 |
| 关键词 | Metallic glasses Structural rejuvenation Plastic flow Strain rate Structural rearrangement |
| ISSN号 | 0022-3093 |
| DOI | 10.1016/j.jnoncrysol.2023.122410 |
| 英文摘要 | 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. |
| 分类号 | 一类 |
| WOS研究方向 | Materials Science, Ceramics ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:001016748500001 |
| 资助机构 | 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] |
| 其他责任者 | 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. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92396]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.{Gao Y., Yang C., Dai L. H., Jiang M. Q.} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 2.{Zhang B. B., Shi C. J.} Chinese Acad Sci Inst High Energy Phys Beijing 100049 Peoples R China 3.{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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：力学研究所
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