Dependence of dendritic side-branches on parameters in phase-field simulations

doi:10.2320/matertrans.46.15

	Dependence of dendritic side-branches on parameters in phase-field simulations
	Zhu, Changsheng 1,3; Liu, Baicheng 2; Jing, Tao 2; Feng, Wenfang 1
刊名	Materials Transactions
	2005
卷号	46 期号:1 页码:15-19
关键词	Anisotropy Diffusion Green's function Morphology Parameter estimation Thermal effects Thermal noise Velocity Anisotropy coefficient Phase-field Side branches Undercooling
ISSN号	13459678
DOI	10.2320/matertrans.46.15
英文摘要	The influence of phase-field parameters on dendritic side-branches is studied by using a phase-field model coupled with thermal noise. The result of calculation indicates that, the thermal diffusion layer collected around the dendrite tends to become thinner with the undercooling increasing, which is favorable to the growth of the side-branches and the dendrite takes on the morphology of developed side-branches; The less coupling coefficient λ is, the quicker the dendrite tip velocity converges on the Green function calculation, the more developed the side-branches are; The anisotropy coefficient Ε influences the steady state of the dendrite tip, the largeris, the greater the dendrite tip velocity is, the more developed the side-branches arc and the smaller the DAS is; The magnitude of thermal noise Fu has an obvious effect upon temperature field, when appropriate value is assigned to Fu, the noise can promote the emergence of side-branches, but it does not influence the tip operating state. ©2005 The Japan Institute of Metals.
语种	英语
出版者	Japan Institute of Metals (JIM)
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112139]
专题	计算机与通信学院经济管理学院
作者单位	1.Lanzhou University of Technology, Lanzhou 730050, China; 2.Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China 3.State Key Laboratory of Gansu New Non-Ferrous Metal Materials, Lanzhou 730050, China;
推荐引用方式 GB/T 7714	Zhu, Changsheng,Liu, Baicheng,Jing, Tao,et al. Dependence of dendritic side-branches on parameters in phase-field simulations[J]. Materials Transactions,2005,46(1):15-19.
APA	Zhu, Changsheng,Liu, Baicheng,Jing, Tao,&Feng, Wenfang.(2005).Dependence of dendritic side-branches on parameters in phase-field simulations.Materials Transactions,46(1),15-19.
MLA	Zhu, Changsheng,et al."Dependence of dendritic side-branches on parameters in phase-field simulations".Materials Transactions 46.1(2005):15-19.