A vector-valued phase field model for polycrystalline solidification using operator splitting method
文献类型：期刊论文
| 作者 | Ren, Jian-kun2,3; Chen, Yun2,4; Xu, Bin1,2,4; Sun, Ming-yue1,2,4; Li, Dian-zhong2,4 |
| 刊名 | COMPUTATIONAL MATERIALS SCIENCE
 |
| 出版日期 | 2019-06-01 |
| 卷号 | 163页码:37-49 |
| 关键词 | Phase field Polycrystalline solidification Grain boundary Dendritic growth Operator splitting method Grain coarsening |
| ISSN号 | 0927-0256 |
| DOI | 10.1016/j.commatsci.2019.02.045 |
| 通讯作者 | Sun, Ming-yue(mysun@imr.ac.cn) |
| 英文摘要 | The vector-valued phase field model is computationally convenient to handle anisotropic polycrystalline growth during solidification and the subsequent formation of grain boundary after solidification. Generally, the formation of grain boundary is controlled by the misorientation between grains. In order to correctly simulate the grain boundary and coarsening behavior, reliable evaluation of the orientation angle gradient is crucial because of orientation angle periodicity. The proposed two-dimensional vector-valued phase field model which makes a pair of the transformed phase field and orientation as an ordering vector could avoid the incorrect calculation of the orientation gradient caused by the periodicity. The model was developed based on the previous frequently-used scalar-valued phase field model. Operator splitting method was employed to enable the finite element discretization in a simple way. A series of examples were then tested and benchmarked. Results demonstrate that the developed model is able to handle the orientation angle periodicity, and the computed steady-state tip velocity coincided well with the published benchmark data. The simulation of polycrystalline solidification and formation of grain boundary, as well as the coarsening implies the model's reliability in tackling the common crystal growth phenomena which take place during practical polycrystalline solidification. |
| 资助项目 | National key research and development program[2016YFB0300401] ; National Natural Science Foundation of China[51774265] ; Key Program of the Chinese Academy of Sciences[ZDRW-CN-2017-1] ; Program of CAS Interdisciplinary Innovation Team |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000466367000005 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National key research and development program ; National Natural Science Foundation of China ; Key Program of the Chinese Academy of Sciences ; Program of CAS Interdisciplinary Innovation Team |
| 源URL | [http://ir.imr.ac.cn/handle/321006/133244]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun, Ming-yue |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 4.Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Jian-kun,Chen, Yun,Xu, Bin,et al. A vector-valued phase field model for polycrystalline solidification using operator splitting method[J]. COMPUTATIONAL MATERIALS SCIENCE,2019,163:37-49. |
| APA | Ren, Jian-kun,Chen, Yun,Xu, Bin,Sun, Ming-yue,&Li, Dian-zhong.(2019).A vector-valued phase field model for polycrystalline solidification using operator splitting method.COMPUTATIONAL MATERIALS SCIENCE,163,37-49. |
| MLA | Ren, Jian-kun,et al."A vector-valued phase field model for polycrystalline solidification using operator splitting method".COMPUTATIONAL MATERIALS SCIENCE 163(2019):37-49. |
入库方式： OAI收割
来源：金属研究所
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