| Vortex Evolution Behavior in Self-Assembly of Flow Units in Metallic Glasses | |
Lian J(廉杰) ; Song RY(宋如月); Chen Y(陈艳); Dai LH(戴兰宏)
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| Source Publication | ACTA MECHANICA SOLIDA SINICA
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| 2023-07-11 | |
| ISSN | 0894-9166 |
| Abstract | Shear banding in amorphous metals originates from the activation and percolation of flow units. To uncover the self-assembly dynamics of flow units in metallic glasses, a rectangular sample with two flow units embedded in the matrix undergoing simple shearing was analyzed using finite element simulations. The vortex evolution behavior, including activation, growth, and collapse during the self-assembly of flow units, was revealed. It was found that the formation of a mature vortex indicates the onset of yielding, and the collapse of the vortex represents the percolation of flow units or shear localization. The effects of initial free volume distribution and the distance between flow units on vortex behavior were also studied. Increasing the initial free volume concentration within flow units or the matrix leads to a gentler vortex evolution process and better homogeneous plasticity. The shape of vortex tends to be flatter with the increase in flow units' spacing, and the optimal spacing was found to maximize the strength of the material. |
| Keyword | Vortex Free volume Self-assembly Flow units Metallic glasses |
| DOI | 10.1007/s10338-023-00409-9 |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:001026345000002 |
| WOS Research Area | Materials Science ; Mechanics |
| WOS Subject | Materials Science, Multidisciplinary ; Mechanics |
| Funding Organization | NSFC [11972346, 11790292] ; NSFC Basic Science Center Program [11988102] |
| Classification | Q3 |
| Ranking | 1 |
| Contributor | Chen, Y (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Chen, Y (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/311007/92578 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.{Lian, Jie, Song, Ruyue, Chen, Yan, Dai, Lanhong} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.{Lian, Jie, Song, Ruyue, Chen, Yan, Dai, Lanhong} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Lian J,Song RY,Chen Y,et al. Vortex Evolution Behavior in Self-Assembly of Flow Units in Metallic Glasses[J]. ACTA MECHANICA SOLIDA SINICA,2023. |
| APA | 廉杰,宋如月,陈艳,&戴兰宏.(2023).Vortex Evolution Behavior in Self-Assembly of Flow Units in Metallic Glasses.ACTA MECHANICA SOLIDA SINICA. |
| MLA | 廉杰,et al."Vortex Evolution Behavior in Self-Assembly of Flow Units in Metallic Glasses".ACTA MECHANICA SOLIDA SINICA (2023). |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2023A180.pdf（1835KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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