透明合金定向凝固过程中枝晶生长的仿真分析  

Simulation of Dendrite Growth of Transparent Alloy in Directional Solidification

作　　者：孙秀玲[1] 赵世萍[1] 

机构地区：[1]长春理工大学,吉林长春130021

出　　处：《铸造技术》2014年第2期337-340,共4页Foundry Technology

摘　　要：以NH4CI-74%H2O透明合金为研究对象,建立了定向凝固微观组织的CA模型,通过实验和计算机仿真模拟方法,研究了温度梯度方向对柱状晶一次臂间距的影响以及透明合金柱状晶竞争生长问题。研究表明,铸件的最终微观组织形态对其力学性能有着较大的影响。Taking transparent NH4 CI-74% H2 O alloy as research object, a CA model of directional solidification microstructure was established., The effects of temperature gradient direction on the columnar primary arm spacing and the competitive growth of the transparent alloy columnar crystal were studied by experiment and computer simulation method. The research results show the final casting microstructure has a great influence on the mechanical properties.

关 键 词：计算机仿真 透明合金 柱状晶 

分 类 号：TG27[金属学及工艺—铸造]