(东南大学 机械系， 南京 210096)
摘 要: 对Al-4.5%Cu二元合金在水冷铜型中的凝固进行了模拟， 建立了耦合温度场、 浓度场和微观生长过程的凝固组织模拟模型。 以CA（Cellular Automaton）技术为基础， 建立了晶粒生长过程的局部演变规则， 在晶粒尺度上模拟了其凝固过程。 将相同条件下的实验结果和模拟结果进行了对照， 检验了模型的正确性与适用条件。
关键字: 显微组织模拟；Cellular Automaton技术； 宏微观耦合模拟
Al-4.5%Cu binary alloy
（Department of Mechanical Engineering, Southeast University,
Nanjing 210096, China）
Abstract:Coupling temperature field, concentration field and micro growth, the simulation of the solidification structure on the solidification process of Al-4.5%Cu binary alloy in water-cooled Cu mould was presented. The model was built according to Cellular Automaton model and the locally functioned law of grain growth was established. By this model, the solidification of the single-phase binary alloy was simulated and studied on the grain scale. The results were compared to other simulations and experimental results available, and then the validity and the applicability of the model were tested.
Key words: microstructure simulation; Cellular Automaton model; coupling of macro/micro modeling
