分析了半固态金属制备过程中搅拌状态下晶粒生长的浓度场及温度场, 将凝固速度与液体流动速度作为晶粒生长形态的影响因素, 建立了 液体运动状态下的晶粒生长形态模型, 并且模拟了在不同半固态制备 条件下晶粒的生长形态. 理论模拟与实验结果相符合.
The concentration field and temperature field of solidifying crystals in the processing of semi--solid metals were analysed under stirring condition. By using solidification velocity and flow speed of the melt as variations of affecting the shape of crystals, a shape determination model for grain growth was developed under the condition of moving liquid. The morphologies of grain growth under different conditions of semi--solid processing were simulated. The simulation results are in accord with the experimental results.
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