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Numerical simulation of dendrite growth and microsegregation formation of binary alloys during solidification process
Alternative TitleNumerical simulation of dendrite growth and microsegregation formation of binary alloys during solidification process
Li Q1; Guo QY1; Li RD1
2006
Source PublicationCHINESE PHYSICS
ISSN1009-1963
Volume15Issue:4Pages:778-791
AbstractThe 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.
Other AbstractThe 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.
KeywordMICROSTRUCTURES EVOLUTION dendrite simulation cellular automaton solidification
Indexed ByCSCD
Language英语
CSCD IDCSCD:2619638
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/151406
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.沈阳理工大学
Recommended Citation
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.
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