GD钢贝氏体相变动力学研究  

THE STUDY OF TRANSFORMATION KINETICS OF BAINITE IN GD STEEL

作　　者：文翠娥[1] 孙培祯[2] 谢长生[2] 崔昆[2] 

机构地区：[1]北京航空航天大学1系 [2]华中理工大学机2系

出　　处：《航空学报》1995年第3期326-330,共5页Acta Aeronautica et Astronautica Sinica

摘　　要：利用Ｆｏｒｍａｓｔｏｒ－Ｆ全自动相变仪对ＧＤ钢贝氏体相变动力学进行了系统的研究。结果表明，ＧＤ钢贝氏体等温转变相变动力学曲线可以用Ｊｏｈｎｓｏｎ－Ｍｅｈｌ型方程精确地加以描述。根据贝氏体相变的总激活能判断，试验钢上。The bainite transformation kinetics of GD steel are investigated systematically by means of a fully autodilatometer Formastor-F. The results show that the isothermal bainite transformation kinetic curve of the tested steel can be accurately expressed by the Johnson-Mehl type equation._According to the total activation energy of bainite transformation,it is deduced that the transitive temperature of upper and lower bainite transformation is about 285℃。

关 键 词：相变 动力学 贝氏体钢 数学模型 

分 类 号：TG142.33[一般工业技术—材料科学与工程] TG111.5[金属学及工艺—金属材料]