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Paper Titles
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Three-Dimensional Modeling and Simulation of Dendrite Morphology of Cast Mg Alloys
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Phase Field Modelling of Dendrite Fragmentation during Thermal Shock

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Abstract:

The dendrite grain growth of a succinonitrile based transparent alloy, their fragmentation under an intense thermal shock and the subsequnet morphology evolution during solidification have been simulated using a two-dimensional binary alloy phase field model coupled with heat and solute transfer. The effect of a sudden, rapid change in the thermal environment (thermal shock) was implemented in the model and the resulting effect on the incipient dendritic grain morphology was studied. Thermal shock effectively promoted the fragmentation of the dendritic grains, providing a significant grain multiplication effect to refine the final solidification microstructure.

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Periodical:

Materials Science Forum (Volumes 654-656)

Pages:

1524-1527

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.1524

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Cite this paper

Online since:

June 2010

Authors:

Z. Guo, Jia Wei Mi, Patrick S. Grant

Keywords:

Dendrite Fragmentation, Microstructural Evolution, Phase Field Modellig, Thermal Shock

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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