基于热模拟双道次压缩试验,研究了热连轧生产过程中船板钢E36奥氏体变形区不同变形温度、变形间隙时间内的软化行为,分析了变形温度和轧制变形间隙时间对静态再结晶软化率的影响,结果表明：变形温度是影响再结晶的最主要因素,在达到轧制变形温度时,随着轧制间隙时间的延长,再结晶软化率呈现逐步递增的趋势。通过金相分析,得出了最佳轧制间隙时间为2 s,验证了软化率曲线。建立了静态再结晶动力学模型,得出了E36的激活能为289.478 kJ/mol。
The softening behavior of deformed austenite of ship plate steel E36 with different deformation temperature and different deformation time span in hot continuous rolling was studied using double passes compression method.The effect of deformation temperature and deformation time span on the softening ratio of static recrystallization was also analyzed.The results showed that the deformation temperature is the key factor to influence recrystallization.When the deformation temperature is reached,the softening ratio of static recrystallization increases with the extension of deformation time span.Through metallographic analysis,the optimal rolling time span was fixed to be 2 s and the softening ratio curve was verified.The dynamic model of static recystallization was established and the static recystallization activation energy for ship plate steel E36 was determined（289.478 kJ/mol）.
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