Multi-scale Simulation for the Columnar to Equiaxed Transition in the Weld Pool

IMR OpenIR

	Multi-scale Simulation for the Columnar to Equiaxed Transition in the Weld Pool
	Han, Rihong; Lu, Shanping; Dong, Wenchao; Li, Dianzhong; Li, Yiyi; Lu, SP (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
	2016
发表期刊	ISIJ INTERNATIONAL
ISSN	0915-1559
卷号	56 期号:6 页码:1003-1012
摘要	The heat and mass transfer behavior and the morphological evolution of the solidification structures in the weld pool were simulated by the multi-scale model which combines the finite element (FE) and the cellular automata (CA) methods to investigate the columnar to equiaxed transition (CET) process during welding. The grain structure evolution within the entire weld and the competitive dendrite growth at different locations were studied to better understand the CET process. The results indicate that with the decrease of the distance to weld center, the undercooled zone width and the maximum undercooling increase. In this case, more equiaxed dendrites form in the undercooled melt, and the distance between the equiaxed dendrites and the columnar front also becomes lager. There is more space for the equiaxed dendrites to grow up and block the columnar dendrites. Therefore, the equiaxed dendrites become more competitive, and the CET tendency increases.
部门归属	[han, rihong ; lu, shanping ; dong, wenchao ; li, dianzhong ; li, yiyi] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china
关键词	Numerical Simulation Weld Solidification Competitive Dendrite Growth Cellular Automata
学科领域	Metallurgy & Metallurgical Engineering
资助者	National Science Foundation of China (NSFC) [51104142]; Shenyang National Laboratory for Materials Science [2015RP25]
收录类别	sci
语种	英语
WOS记录号	WOS:000378189600012
引用统计	被引频次：8[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/321006/75954
专题	中国科学院金属研究所
通讯作者	Lu, SP (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Han, Rihong,Lu, Shanping,Dong, Wenchao,et al. Multi-scale Simulation for the Columnar to Equiaxed Transition in the Weld Pool[J]. ISIJ INTERNATIONAL,2016,56(6):1003-1012.
APA	Han, Rihong,Lu, Shanping,Dong, Wenchao,Li, Dianzhong,Li, Yiyi,&Lu, SP .(2016).Multi-scale Simulation for the Columnar to Equiaxed Transition in the Weld Pool.ISIJ INTERNATIONAL,56(6),1003-1012.
MLA	Han, Rihong,et al."Multi-scale Simulation for the Columnar to Equiaxed Transition in the Weld Pool".ISIJ INTERNATIONAL 56.6(2016):1003-1012.