摘要
在Gleeble-3800热模拟实验机上进行热变形试验,研究不同钒含量的直接切削用非调质钢在变形温度为950~1 150℃,应变速率为0.1~10 s^(-1),变形量为60%的单道次压缩的奥氏体再结晶过程。计算得出,V1钢的动态再结晶激活能Q_d比V2钢的提高了79.617 kJ/mol,增加钒含量具有延迟奥氏体动态再结晶发生的作用。根据试验模拟结果并结合实际生产情况,确定了V1钢和V2钢的最佳热加工工艺参数。
Austenite dynamic recrystallization process of the non-quenched and tempered steels with different V contents for direct cutting in single pass compression with strain rate of 0.1- 10 s^-1 and deformation 60% at 950 - 1 150 ℃ was studied through the thermal deformation experiment on Gleeble-3800 thermal simulator. The calculated dynamic recrystallization activation energies of V1 steel was 79. 617 kJ/mol higher than that of V2 steel. Results showed that the increasing vanadium content could delay the austenite dynamic recrystallization. According to the simulation results and the actual production situation, the optimum hot working parameters of V1 steel and V2 steel were determined.
出处
《上海金属》
CAS
北大核心
2016年第6期5-10,共6页
Shanghai Metals
基金
国际钒技术委员会(Vanitec)合作项目(V137)
关键词
钒元素
非调质钢
动态再结晶激活能
动态再结晶状态图
vanadium element,non-quenched and tempered steel,dynamic recrystallization activation energy, dynamic recrystallization state diagram
