【摘要】 通过对现有铁基合金等温马氏体转变动力学模型的分析，在肯定自促发形核机制的基础上，首次提出由自促作用所形成核胚数的瞬时值，使得动力学方程形式简单、意义明了，并结合实测数据进行了数值计算。结果表明：理论计算与实测情况一致。更多还原

【Abstract】 Through analysing the present dynamic models concerning isotherinal martensitic transformation in ferrous alloys, the instantaneous value of embryos formed by autocatalytic effect has been proposed on the basis of affiiming the mechanism of the autocatalytic nucleation. The new model makes the dynamic equation more simple in form and clear in meaning. The numerical calculation combined with the experimental data has indicated that the theoretical curve is well in agreement with experimental results.更多还原