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通过MMS-200热模拟机对一种低碳中锰钢进行了双道次压缩实验,研究了它的静态再结晶行为。分析了变形温度和轧制道次间隙时间对静态再结晶体积分数的影响。结果表明:随着变形温度的升高和轧制间隙的延长,再结晶软化率增大。本文计算了不同变形温度下低碳中锰钢的静态软化率,确定了静态再结晶激活能,并通过最小二乘法建立了静态再结晶动力模型。
Through a MMS-200 thermal simulator, a two-pass compression experiment was carried out on a low-carbon medium-manganese steel to study its static recrystallization behavior. The effects of deformation temperature and rolling pass gap time on the volume fraction of static recrystallization were analyzed. The results show that the recrystallization softening rate increases with the increase of deformation temperature and the extension of rolling gap. In this paper, the static softening rates of low carbon medium manganese steel at different deformation temperatures were calculated, the static recrystallization activation energy was determined, and the dynamic model of static recrystallization was established by the least squares method.