| A phase-field simulation of the solidification process under compression | |
| Ren, Jian-kun1,2; Chen, Yun3; Cao, Yan-fei3; Xu, Bin1,3; Sun, Ming-yue1,3; Li, Dian-zhong3 | |
| Corresponding Author | Sun, Ming-yue(mysun@imr.ac.cn) |
| 2021-07-01 | |
| Source Publication | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| ISSN | 2238-7854 |
| Volume | 13Pages:2210-2219 |
| Abstract | Semi-solid metal forming processes cover a wide variety of technologies in manufacturing, generally leading to non-dendritic microstructures typified by rosette-like or spherical grains. With the contemporary experimental methods, researchers still cannot completely understand the formation of such microstructures. However, as a process coupled with dendritic growth, deformation and flow, the microstructural evolution during the semisolid deformation has been scarcely simulated. With the vector-valued phase-field method, two-phase flow model and an innovative design of boundary conditions, the current research numerically compressed a single dendrite into a less dendritic polycrystalline structure. The resulting microstructure was consistent with the metallographic analysis and the simulation enables a clear observation of the whole process: the ripening transformed the highly branched shape into a less dendritic one; the subsequent deformation crushed the dendrite into a stubby structure; eventually, the deformation caused the boundaries inside this structure, dividing the solid into multiple grains. The analysis on the boundaries inside the deformed solid offered further insight into the formation of non-dendritic structures. These boundaries showed a tendency towards melting with increasing misorientation, demonstrating the possibility of the grain boundary wetting, which was considered as the source of the fragmentation when the dendrite undergoes deformation, but is hard to validate in situ even with the cutting-edge X-ray imaging technique. (c) 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| Keyword | Phase-field simulation Semi-solid deformation Solidification Dendrite |
| Funding Organization | National Key Research and Development Program ; National Natural Science Foundation of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; LingChuang Research Project of China National Nuclear Corporation ; Program of CAS Interdisciplinary Innovation Team, Youth Innovation Promotion Association, CAS ; Special Scientific Projects of Inner Mongolia |
| DOI | 10.1016/j.jmrt.2021.05.081 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program[2016YFB0300401] ; National Key Research and Development Program[2018YFA0702900] ; National Natural Science Foundation of China[51774265] ; National Natural Science Foundation of China[51701225] ; National Science and Technology Major Project of China[2019ZX06004010] ; National Science and Technology Major Project of China[2017-VII-0008-0101] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04000000] ; LingChuang Research Project of China National Nuclear Corporation ; Program of CAS Interdisciplinary Innovation Team, Youth Innovation Promotion Association, CAS ; Special Scientific Projects of Inner Mongolia |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000677665800006 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/159660 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun, Ming-yue |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Ren, Jian-kun,Chen, Yun,Cao, Yan-fei,et al. A phase-field simulation of the solidification process under compression[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2021,13:2210-2219. |
| APA | Ren, Jian-kun,Chen, Yun,Cao, Yan-fei,Xu, Bin,Sun, Ming-yue,&Li, Dian-zhong.(2021).A phase-field simulation of the solidification process under compression.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,13,2210-2219. |
| MLA | Ren, Jian-kun,et al."A phase-field simulation of the solidification process under compression".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 13(2021):2210-2219. |
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