航空学报 > 1995, Vol. 16 Issue (3): 71-75

GD钢贝氏体相变动力学研究

文翠娥1, 孙培祯2, 谢长生2, 崔昆2   

  1. 1. 北京航空航天大学1 系, 北京, 10083;2. 华中理工大学机2 系, 武汉, 430074
  • 收稿日期:1993-06-14 修回日期:1993-11-06 出版日期:1995-06-25 发布日期:1995-06-25

THE STUDY OF TRANSFORMATION KINETICS OF BAINITE IN GD STEEL

Wen Cuie1   

  1. 1. First Department of Beijing University of Aeronautics and Astronautics, Beijing, 100083;2. Departmment of Mechanical Engineering No. 2, Huazhong University of Science and Technology, Wuhan, 430074
  • Received:1993-06-14 Revised:1993-11-06 Online:1995-06-25 Published:1995-06-25

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、下贝氏体相变的过渡温度约为285℃。

关键词: 相变, 动力学, 贝氏体钢, 数学模型

Abstract: 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℃。

Key words: phases transformation, kinetics, bainite steel, mathematical models

中图分类号: