合金凝固过程枝晶生长的界面前沿跟踪法模拟

doi:10.3976/j.issn.1002-4026.2016.03.006

SHANDONG SCIENCE ›› 2016, Vol. 29 ›› Issue (3): 28-34.doi: 10.3976/j.issn.1002-4026.2016.03.006

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Front-tracking model ofdendritic growth in multicomponent alloy solidification process

LIUBo-zu¹ , YI Guan-yu², ZHAO Zhong-kui ¹

1. School of Material Science and Engineering, Shandong Jianzhu University, Jinan 250001, China;2. Shandong Provincial Engineering Research Center for Lightweight Automobile Magnesium Alloy, Advanced Materials Research Institute, Shandong Academy of Sciences, Jinan 250014, China

Received:2016-03-17 Online:2016-06-20 Published:2016-06-20

Abstract

Abstract:

To predict microstructure evolution of Aluminum alloy castings in solidification process, we generalize KGT model with an equivalent method and construct a front-tracking model applicable to multicomponent alloy. We further apply the model to the simulation for the solidification process of Al-6Si-4Cu alloy. Simulation results show that the model can predict free dendritic growth, solute segregation in liquid phase and competitive growth process of dendrites in polycrystal growth. The model can
therefore track real-time front position of solidification, save computation time and improve efficiency.

Key words: front-tracking model')">front-tracking model, dendritic growth, ternary alloy

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LIU Bo-zu,YI Guan-yu, ZHAO Zhong-kui. Front-tracking model ofdendritic growth in multicomponent alloy solidification process[J].SHANDONG SCIENCE, 2016, 29(3): 28-34.

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Front-tracking model ofdendritic growth in multicomponent alloy solidification process

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