高铝锌合金比重偏析凝固过程数值模拟  

The Solidification Simulation of Zn-Al Alloy with the Consideration of Gravitational Segregation

作　　者：张占领[1] 倪锋[1] 杨留栓[1] 

机构地区：[1]河南科技大学材料科学与工程学院,洛阳471039

出　　处：《材料开发与应用》2003年第4期17-20,共4页Development and Application of Materials

基　　金：河南省教育厅自然科学基金资助项目(19994 6 0 0 14 )

摘　　要：建立了固液两相流凝固模型 ,用PHOENICS软件在三维柱坐标系中建模 ,用有限差分法离散 ,模拟了高铝锌合金凝固时的比重偏析。计算结果与试验结果基本吻合 ,表明该凝固模型能较好地模拟比重偏析现象。The two phase flow model of the solidification is established and the equations are differentiated and computed in 3 D cylindrical polar coordination system by PHOENICS to simulate the gravitational segregation of the Zn Al alloy. lt is manifested that the computed results are well in agreement with the experiments indicating the model can be used to simulate the gravitational segregation during the solidification.

关 键 词：锌铝合金 比重偏析 凝固模拟 

分 类 号：TG29[金属学及工艺—铸造]