研究了30Cr2Ni4MoV低压转子用钢加热过程中的连续相变动力学与等温相变动力学.在测定该钢在0.008～20 K/s加热速率下奥氏体化膨胀曲线的基础上,运用Kissinger方法对实验数据进行基于非等温相变Johnson-Mehl-Avrami(J-M-A)模型的动力学分析,确定了模型中的参数:奥氏体化相变激活能Q约为2.367×106 J/mol,J-M-A指数n约为0.2448,指前因子Ink0约为270.5.根据这些参数和J-M-A方程可进而获得等温奥氏体化相变动力学曲线.结果表明,非等温连续相变动力学曲线中包含等温相变动力学信息.对由于孕育期极短而难以准确测定的等温相变动力学曲线,从连续转变动力学数据抽取得到是一种可行而有效的方法.
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