在Newton冷却模型的基础上,用数值求解方法计算了FGH95高温合金在等离子旋转电极雾化(PREP)过程中雾化熔滴的温度、固相分数、冷却速率等凝固参量随工艺参数的变化规律.结果表明:合金过热度对凝固参量的影响主要在全液态阶段,电极棒转速大小对熔滴凝固过程有一定影响,而雾化熔滴的冷却速率及固相分数等对氩氦气体的混合比例极为敏感.
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