A phase-field study of the solidification process coupled with deformation

doi:10.1007/s10853-021-06026-6

CORC > 金属研究所 > 中国科学院金属研究所

	A phase-field study of the solidification process coupled with deformation
	Ren, Jian-kun 1,2; Chen, Yun 3; Cao, Yan-fei 3; Xu, Bin 1,3; Sun, Ming-yue 1,3; Li, Dian-zhong 3
刊名	JOURNAL OF MATERIALS SCIENCE
	2021-05-03
页码	20
ISSN号	0022-2461
DOI	10.1007/s10853-021-06026-6
通讯作者	Sun, Ming-yue(mysun@imr.ac.cn)
英文摘要	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] .
资助项目	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研究方向	Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000646490200003
资助机构	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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/161739]
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, 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
推荐引用方式 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.