Numerical simulation of dendrite growth during solidification

Yao, X., He, B., Wang, H. and Zhou, X. (2006) Numerical simulation of dendrite growth during solidification. International Journal of Nonlinear Sciences And Numerical Simulation, 7 2: 171-176. doi:10.1515/IJNSNS.2006.7.2.171

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Author Yao, X.
He, B.
Wang, H.
Zhou, X.
Title Numerical simulation of dendrite growth during solidification
Journal name International Journal of Nonlinear Sciences And Numerical Simulation   Check publisher's open access policy
ISSN 1565-1339
Publication date 2006-06
Sub-type Article (original research)
DOI 10.1515/IJNSNS.2006.7.2.171
Open Access Status File (Publisher version)
Volume 7
Issue 2
Start page 171
End page 176
Total pages 6
Place of publication Berlin, Germany
Publisher Walter de Gruyter
Language eng
Abstract A comprehensive probabilistic model for simulating dendrite morphology and investigating dendritic growth kinetics during solidification has been developed, based on a modified Cellular Automaton (mCA) for microscopic modeling of nucleation, growth of crystals and solute diffusion. The mCA model numerically calculated solute redistribution both in the solid and liquid phases, the curvature of dendrite tips and the growth anisotropy. This modeling takes account of thermal, curvature and solute diffusion effects. Therefore, it can simulate microstructure formation both on the scale of the dendrite tip length. This model was then applied for simulating dendritic solidification of an Al-7%Si alloy. Both directional and equiaxed dendritic growth has been performed to investigate the growth anisotropy and cooling rate on dendrite morphology. Furthermore, the competitive growth and selection of dendritic crystals have also investigated.
Keyword Mathematics, Applied
Physics, Mathematical
Engineering, Multidisciplinary
Dendritic Growth
Probabilistic Model
Cellular Automaton
Crystal Growth
Solute Diffusion
Solute Redistribution
Rapid Solidification
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

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Created: Mon, 13 Aug 2007, 16:09:10 EST