摘要
采用热力学分析分别对Si-Mn系TRIP钢在平衡与非平衡条件下的T0温度进行了评估,从而获得了贝氏体转变上限温度的计算方法;同时采用Thermo-Calc热力学计算软件并结合TQ6接口模块以及自建数据库,通过Compaq Visual Fortran 6软件编程计算了多元体系实验钢的贝氏体转变下限温度。结果表明:热力学计算方法获得的平衡及偏平衡条件下T0温度的平均值,与实测值较接近;通过对临界退火后奥氏体的MS进行计算并用于预测贝氏体转变下限温度,其计算结果与实验结果吻合较好。
Thermodynamic analysis of T0 under equilibrium and para-equilibrium conditions of Si-Mn TRIP steels were evaluated to obtain the calculation method of the upper bainite transformation temperature. Meanwhile,the lower bainite transformation temperatures of the steels with multicomponent system were calculated by the aid of Compaq Visual Fortran 6 software programming,Thermo-Calc software,TQ6 interface module and self-built database. The results show that the average values of T0 under equilibrium and para-equilibrium conditions calculated by thermodynamic method are closer to the experimental values. The calculated MSof austenite after intercritical annealing can predict the lower bainite transformation temperatures,and the calculation results are in good agreement with experimental results.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2015年第9期226-230,共5页
Transactions of Materials and Heat Treatment
基金
上海大学"材料基因工程"内涵建设(085工程)