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借助元胞自动机理论,以动态再结晶体积分数和再结晶尺寸分布为模拟目标,在Deform软件模块中对40MnV锻态钢热变形过程中的微观组织演变进行了计算机模拟,并在相应工艺下对40MnV锻态钢进行了试验验证。结果表明,当锻压温度为940、1 040、1 140和1 240℃时,随着锻压温度的升高,40MnV合金钢再结晶体积分数逐渐升高,再结晶晶粒尺寸不断增加。计算机模拟得到的再结晶体积分数和再结晶晶粒尺寸分布结果与试验结果保持一致。
Based on the cellular automata theory and the dynamic recrystallization volume fraction and recrystallization size distribution as simulation targets, the microstructure evolution of 40MnV steel during hot deformation was simulated by Deform software module. Under the corresponding process 40MnV forged steel was tested. The results show that the recrystallization volume fraction of 40MnV alloy steel increases with the increase of forging temperature at forging temperature of 940, 1 040, 1 140 and 1 240 ℃, and the recrystallization grain size increases. Computer simulation of the recrystallization volume fraction and recrystallization grain size distribution results consistent with the test results.