计算马氏体转变量的MAGEE公式的改进

The Improvement of Magee Formula in Calculating the Amount of Martensite Transformation

用热力学的方法研究马氏体转变动力学取得成功．认为在Ｍｓ点以下，马氏体与未转变的奥氏体处于某种准平衡状态，导出了新的马氏体转变量的计算公式．与传统的Ｍａｇｅｅ公式相比，本文导出的公式，构思严密，基础坚实，应用范围广，计算精度高，与实验数据符合得好，具有很大的理论价值和实际意义．

In this paper the suecess in the kinetics of martensitic transformation by means of thermoldynamics method has been made. It is considerd that martensite and unchanged austenite are in a certain quasi-equilibrium state below martensitic point Ms, a formula calculating the amount of martensite transformation has been derived. In comparision with the traditional Magee formula, the formula derived has wider application range and higher accurcy of calculation and is in good agreement with experimental data. The new formula has great theoretical value and practical significance.