| The non-dendritic microstructure arising from grain boundary formation and wetting: A phase-field simulation and experimental investigation of semi-solid deformation | |
| Ren, Jian-kun1,2; Sun, Ming-yue1,3; Chen, Yun1; Xu, Bin1,3; Liu, Wei-feng1,2; Jiang, Hai -yang1,2; Cao, Yan-fei1; Li, Dian-zhong1 | |
| Corresponding Author | Sun, Ming-yue(mysun@imr.ac.cn) ; Li, Dian-zhong(dzli@imr.ac.cn) |
| 2022-11-01 | |
| Source Publication | MATERIALS & DESIGN
 |
| ISSN | 0264-1275 |
| Volume | 223Pages:12 |
| Abstract | The semi-solid metal forming process can prevent the formation of unpopular dendritic microstructures but the mechanism remains unclear. To explore the underlying causes, a challenging phase-field simula-tion was performed, supported by a semi-solid experiment. The simulation managed to couple dendritic growth with melt flow and solid deformation, a process that few existing models or in situ experimental techniques could analyze. This study found that under deformation, grain boundary formation and wet-ting play a pivotal role in the formation of non-dendritic structures: it is the grain boundary formation and wetting that split the bending side-branch from dendrite trunk; the detached side-branch could then evolve into a non-dendritic morphology. The simulation showed that wetting could finish almost imme-diately after a moderate bending. This process appears similar to but is essentially distinct from the con-ventional explanation that describes dendrite fragmentation as mechanical breakage.(c) 2022 The Authors. Published by Elsevier Ltd. 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 method Semi -solid deformation Grain boundary wetting Non-dendritic microstructure |
| 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.matdes.2022.111111 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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:000869924500004 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/176428 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun, Ming-yue; Li, Dian-zhong |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Ren, Jian-kun,Sun, Ming-yue,Chen, Yun,et al. The non-dendritic microstructure arising from grain boundary formation and wetting: A phase-field simulation and experimental investigation of semi-solid deformation[J]. MATERIALS & DESIGN,2022,223:12. |
| APA | Ren, Jian-kun.,Sun, Ming-yue.,Chen, Yun.,Xu, Bin.,Liu, Wei-feng.,...&Li, Dian-zhong.(2022).The non-dendritic microstructure arising from grain boundary formation and wetting: A phase-field simulation and experimental investigation of semi-solid deformation.MATERIALS & DESIGN,223,12. |
| MLA | Ren, Jian-kun,et al."The non-dendritic microstructure arising from grain boundary formation and wetting: A phase-field simulation and experimental investigation of semi-solid deformation".MATERIALS & DESIGN 223(2022):12. |
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