Phase Field Simulation of Solidified Multiple Grains

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Abstract:

A phase-field model based on the Ginzburg-Landan theory and KKS model is used to simulate the dendrite growth of multiple grains for Al-Cu alloy. The influence of solidification latent heat and undercooling on the growth of equiaxed dendrite, solute distribution and temperature distribution were studied. The results show that the dendrite has well-developed and the competitive growth between grains more intense with the increasing of undercooling. The release of solidification latent heat restrain dendrite growth to a certain extent, which led to the less developed growth of dendrite solidified in non-isothermal conditions than that in isothermal conditions.

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Periodical:

Advanced Materials Research (Volumes 602-604)

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1874-1877

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Online since:

December 2012

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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