Numerical simulation of dendrite growth and microsegregation formation of binary alloys during solidification process

IMR OpenIR

	Numerical simulation of dendrite growth and microsegregation formation of binary alloys during solidification process
其他题名	Numerical simulation of dendrite growth and microsegregation formation of binary alloys during solidification process
	Li Q 1; Guo QY 1; Li RD 1
	2006
发表期刊	CHINESE PHYSICS
ISSN	1009-1963
卷号	15 期号:4 页码:778-791
摘要	The dendrite growth and solute microsegregation of Fe-C binary alloy are simulated during solidification process by using cellular automaton method. In the model the solid fraction is deduced from the relationship among the temperature, Solute concentration and curvature of the solid/liquid interface unit, which can be expressed as a quadric equation, instead of assuming the interface position and calculating the solid fraction from the interface velocity. Then by using this model a dendrite with 0 and 45 degree of preferential growth direction are simulated respectively. Furthermore, a solidification microstructure and solute microsegregation are simulated by this method. Finally, different Gibbs-Thomson coefficient and liquid solute diffusing coefficient are adopted to investigate their influences on the morphology of dendrite.
其他摘要	The dendrite growth and solute microsegregation of Fe-C binary alloy are simulated during solidification process by using cellular automaton method. In the model the solid fraction is deduced from the relationship among the temperature, solute concentration and curvature of the solid/liquid interface unit, which can be expressed as a quadric equation, instead of assuming the interface position and calculating the solid fraction from the interface velocity. Then by using this model a dendrite with 0 and 45 degree of preferential growth direction are simulated respectively. Furthermore, a solidification microstructure and solute microsegregation are simulated by this method. Finally, different Gibbs- Thomson coefficient and liquid solute diffusing coefficient are adopted to investigate their influences on the morphology of dendrite.
关键词	MICROSTRUCTURES EVOLUTION dendrite simulation cellular automaton solidification
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:2619638
引用统计	被引频次：4[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/151404
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.沈阳理工大学
推荐引用方式 GB/T 7714	Li Q,Guo QY,Li RD. Numerical simulation of dendrite growth and microsegregation formation of binary alloys during solidification process[J]. CHINESE PHYSICS,2006,15(4):778-791.
APA	Li Q,Guo QY,&Li RD.(2006).Numerical simulation of dendrite growth and microsegregation formation of binary alloys during solidification process.CHINESE PHYSICS,15(4),778-791.
MLA	Li Q,et al."Numerical simulation of dendrite growth and microsegregation formation of binary alloys during solidification process".CHINESE PHYSICS 15.4(2006):778-791.