Effective Energy Density of Glass Rejuvenation
文献类型：期刊论文
| 作者 | Ding, Gan2,3; Jiang, Feng3; Dai, Lanhong1,2 ; Jiang, Minqiang1,2; Dai LH(戴兰宏); Jiang MQ(蒋敏强)
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| 刊名 | ACTA MECHANICA SOLIDA SINICA
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| 出版日期 | 2022-04-14 |
| 页码 | 9 |
| 关键词 | Glass Structural rejuvenation Effective energy density Shear transformations Free volume |
| ISSN号 | 0894-9166 |
| DOI | 10.1007/s10338-022-00319-2 |
| 通讯作者 | Jiang, Minqiang(mqjiang@imech.ac.cn) |
| 英文摘要 | Glasses with rejuvenated structures usually exhibit improved room-temperature plasticity, which facilitates their applications. However, glass rejuvenation requires external energy injection to "shake up" the frozen-in disordered structure. In this work, we give the answer to how much the required energy is. According to the constitutive model of amorphous plasticity, we find that the applied stress higher than the steady-state flow value can effectively induce the structural disordering in terms of the generation of free volume. Therefore, the effective energy density (EED) of structural rejuvenation is defined as the integral of this effective stress on the corresponding strain. By tailoring the applied strain, strain rate, temperature and initial free volume, different degrees of structural rejuvenation are achieved, which show a generally linear correlation with the defined EED. This work deepens the understanding of glass rejuvenation from an energy perspective. |
| WOS关键词 | METALLIC GLASSES ; PLASTICITY ; LIQUIDS ; ORIGIN ; CREEP |
| 资助项目 | National Outstanding Youth Science Fund Project[12125206] ; National Natural Science Foundation of China (NSFC)[11790292] ; NSFC Basic Science Center for Multiscale Problems in Nonlinear Mechanics[11988102] ; [11972345] |
| WOS研究方向 | Materials Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000782538400001 |
| 资助机构 | National Outstanding Youth Science Fund Project ; National Natural Science Foundation of China (NSFC) ; NSFC Basic Science Center for Multiscale Problems in Nonlinear Mechanics |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88892]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Jiang, Minqiang |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 3.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Gan,Jiang, Feng,Dai, Lanhong,et al. Effective Energy Density of Glass Rejuvenation[J]. ACTA MECHANICA SOLIDA SINICA,2022:9. |
| APA | Ding, Gan,Jiang, Feng,Dai, Lanhong,Jiang, Minqiang,戴兰宏,&蒋敏强.(2022).Effective Energy Density of Glass Rejuvenation.ACTA MECHANICA SOLIDA SINICA,9. |
| MLA | Ding, Gan,et al."Effective Energy Density of Glass Rejuvenation".ACTA MECHANICA SOLIDA SINICA (2022):9. |
入库方式： OAI收割
来源：力学研究所
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