A vector-valued phase field model for polycrystalline solidification using operator splitting method

doi:10.1016/j.commatsci.2019.02.045

IMR OpenIR

	A vector-valued phase field model for polycrystalline solidification using operator splitting method
	Ren, Jian-kun 1,2; Chen, Yun 1,3; Xu, Bin 1,3,4; Sun, Ming-yue 1,3,4; Li, Dian-zhong 1,3
通讯作者	Sun, Ming-yue(mysun@imr.ac.cn)
	2019-06-01
发表期刊	COMPUTATIONAL MATERIALS SCIENCE
ISSN	0927-0256
卷号	163 页码:37-49
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.
关键词	Phase field Polycrystalline solidification Grain boundary Dendritic growth Operator splitting method Grain coarsening
资助者	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
DOI	10.1016/j.commatsci.2019.02.045
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000466367000005
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/133245
专题	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, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 4.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, 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.