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01~10 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ZenerHollomon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 quenchingandtempering steel was conducted on Gleeble 1500 at the temperature 1 223-1 473 K and strain rate of 01-10 s-1 to research its hot deformation behavior. The deformation energy was caculated. The dependence of the peak stress and peak strain on ZenerHollomon parameter was studied.The mathmatical models of volume fraciton and grain size after dynamical recrystallization were also obtained as follows.
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