| A phase-field study of the solidification process coupled with deformation | |
| 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) |
| 2021-05-03 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE
 |
| ISSN | 0022-2461 |
| Pages | 20 |
| Abstract | Non-dendritic microstructures are generally obtained in metals after semi-solid deformation (deformation during solidification); however, dendritic growth is preferred without deformation. The fragmentation of dendrites is recognized as an essential contributing factor to non-dendritic microstructures. However, the underlying mechanism of fragmentation needs to be clarified in depth. It is infamously hard for researchers to carry out a direct observation of this process. Moreover, a comprehensive numerical survey of this process is not trivial. The present research reported a new method to model dendritic growth during semi-solid deformation. The motion and deformation of the solid coupled with liquid flow in the melt were treated as the two-phase flow because plastic materials could be formulated as non-Newtonian fluids. The vector-valued phase-field formulation and the self-constructed Navier-Stokes solver made it possible to simulate the growth, motion, deformation, fragmentation and agglomeration of two dendrites coupled with liquid flow in the melt. Computational results suggest that fragmentation can occur when the grain boundary is wet and penetrated by the melt, giving new supporting evidence to a previously proposed mechanism for the fragmentation of dendrites. [GRAPHICS] . |
| 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 | 10.1007/s10853-021-06026-6 |
| 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 |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000646490200003 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/161740 |
| 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 study of the solidification process coupled with deformation[J]. JOURNAL OF MATERIALS SCIENCE,2021:20. |
| APA | Ren, Jian-kun,Chen, Yun,Cao, Yan-fei,Xu, Bin,Sun, Ming-yue,&Li, Dian-zhong.(2021).A phase-field study of the solidification process coupled with deformation.JOURNAL OF MATERIALS SCIENCE,20. |
| MLA | Ren, Jian-kun,et al."A phase-field study of the solidification process coupled with deformation".JOURNAL OF MATERIALS SCIENCE (2021):20. |
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