论文部分内容阅读
采用Gleeble 3500热模拟机,研究了D36船板奥氏体的再结晶温度以及奥氏体的变形温度、变形量和变形速率对热变形奥氏体再结晶的影响。结果表明:当变形速率为0.1~1 s-1、温度达到950℃时,开始发生动态再结晶;当变形速率为5 s~(-1)、温度在1 000~1 050℃时,发生动态再结晶;当变形速率为10 s~(-1)时,不发生动态再结晶。当变形温度为1 050℃、单道次变形率在10%~20%时,D36钢在10s左右的道次间隔内发生了完全的静态再结晶。当单道次变形率在20%以上,D36钢在5 s左右的道次间隔内发生了完全的静态再结晶。
Using Gleeble 3500 thermal simulator, the recrystallization austenite temperature of austenite of D36 shipbuilding and the influence of deformation temperature, deformation and deformation rate on recrystallization of hot deformed austenite were studied. The results show that when the deformation rate is 0.1 ~ 1 s-1 and the temperature reaches 950 ℃, dynamic recrystallization begins to occur. When the deformation rate is 5 s -1 and the temperature is 1 000 ~ 1 050 ℃, dynamic recrystallization occurs. Recrystallized. When the deformation rate was 10 s ~ (-1), no dynamic recrystallization occurred. When the deformation temperature is 1 050 ℃ and the single pass deformation rate is 10% ~ 20%, the complete static recrystallization of D36 steel takes place within the interval of about 10s. When the single-pass deformation rate is above 20%, the D36 steel completely static recrystallizes in the interval of about 5 s.