摘要
采用Gleeble 1500热模拟实验机对F40MnV非调质钢在温度为1 223-1 473 K,应变速率为0.1-10 s-1的热变形行为进行研究。通过奥氏体再结晶动力学回归计算得到了F40MnV钢的变形激活能,峰值应力和峰值应变与Zener-Hollomon参数的关系表达式。同时,得到了F40MnV钢的动态再结晶动力学方程和动态再结晶晶粒尺寸的数学模型。
Hot compression test of F40MnV without quenching-and-tempering steel was conducted on Gleeble 1500 at the temperature 1 223-1 473 K and strain rate of 0. 1- 10 s^-1 to research its hot deformation behavior. The deformation energy was caculated. The dependence of the peak stress and peak strain on Zener-Hollomon parameter was studied. The mathmatical models of volume fraciton and grain size after dynamical recrystallization were also obtained as follows.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2007年第5期68-71,106,共5页
Journal of Iron and Steel Research
基金
国家自然科学基金项目(50275094)
关键词
F40MnV
非调质钢
流动应力
动态再结晶
F40MnV steel
quenched and tempered steel
flow st ress
dynamical recrystallization
