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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。
Based on the thermal simulation two-pass compression test, the softening behavior of the E36 austenite during the continuous hot rolling process was studied under different deformation temperatures and deformation gap time. The effect of deformation temperature and rolling deformation gap time on the static state The results show that the deformation temperature is the most important factor affecting the recrystallization. When the rolling deformation temperature is reached, the recrystallization softening rate shows a gradual increasing trend with the extension of the rolling gap time. Through the metallographic analysis, the optimal rolling clearance time is 2 s, and the softening rate curve is verified. The static recrystallization kinetics model was established and the activation energy of E36 was 289.478 kJ / mol.