Numerical Simulation of Dendrite Growth of Binary Alloy Using Phase-Field Method

Fang Hui Liu; Ming Gao

doi:10.4028/www.scientific.net/AMM.716-717.133

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 716-717Numerical Simulation of Dendrite Growth of Binary...

Numerical Simulation of Dendrite Growth of Binary Alloy Using Phase-Field Method

Abstract:

In order to study the growth process and morphology of dendrite directly, a phase field model of binary alloy was established. In this model the order parameter equation was coupled with the temperature field and the solute field. The growing processes and morphology of dendrite were simulated by using this phase field model. Through analyzing the results, we discussed the effects of anisotropic strength and temperature gradient on dendrite morphology. The results shows that with the increasing of anisotropic strength, the dendrite growth rate of the dendrite will increase and the secondary branches appear more clearly. Besides, the temperature gradient has influence on the appearance of secondary arms during the dendrite growing. With the increase of temperature gradient, the size of secondary dendrite arms increase.

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Periodical:

Applied Mechanics and Materials (Volumes 716-717)

Pages:

133-136

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.716-717.133

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Online since:

December 2014

Authors:

Fang Hui Liu*, Ming Gao

Keywords:

Binary Alloy, Dendrite Growth, Numerical Simulation, Phase Field Method

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