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.
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