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首页> 外文期刊>ISIJ international >Numerical Simulation of Microstructure Evolution of An Alloys in Centrifugal Casting
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Numerical Simulation of Microstructure Evolution of An Alloys in Centrifugal Casting

机译：离心铸造合金微观组织演变的数值模拟

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摘要

A coupled stochastic model has been developed for the prediction of solidification grains structures in cen- trifugal casting. The present model consists of two schemes: the cellular automaton to simulate the evolu- tion of solidification structure and the finite volume method to calculate the heat transfer. The present models has been applied to predict the evolution of solidification structures in centrifugal casting of A alloys. The effects of mold rotation velocity, solute concentration, melt superheat and mold preheating tempera- Ture on solidification structures were investigated. In addition, the evolution of dendritic microstructures Was also simulated using a modified cellular automaton model. The simulated results were in good agree- Ment with those obtained experimentally.
机译：已经建立了耦合随机模型来预测离心铸造中的凝固晶粒结构。本模型包括两种方案：模拟凝固结构演变的元胞自动机和计算传热的有限体积法。本模型已被用于预测A合金离心铸造中凝固组织的演变。研究了结晶器转速，溶质浓度，熔体过热和结晶器预热温度对凝固组织的影响。此外，还使用改进的细胞自动机模型模拟了树枝状微结构的演化。仿真结果与实验结果吻合良好。

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