在经典沉淀相回溶过程扩散动力学的基础上,结合商业软件Thermo-Calc中镍基合金各元素的热力学数据库及Dictra 中的动力学数据库,在Matlab平台上开发了基于经典动态模型的沉淀相回溶及析出计算的原型系统,建立了镍基高温合金沉淀相回溶过程的经典动态模型.利用该模型计算了GH4169合金钢锭中不同尺寸Laves相的溶解量随时间和均匀化温度的变化,并与不同冷速下得到的凝固重熔铸锭均匀化前后的Laves相实际尺寸和体积分数进行对比分析.结果表明,利用经典动态模型计算的GH4169合金钢锭中不同尺寸Laves相的溶解量随时间和均匀化温度的变化与实验结果基本一致,说明该经典动态模型的预测结果可以作为工程应用中确定GH4169钢锭中Laves相回溶过程均匀化工艺的依据.
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