采用Gleeble-1500热模拟机,测定了36Mn2V钢经四种终轧温度变形后的连续冷却膨胀曲线,结合金相-硬度法,获得了该钢种的连续冷却转变曲线.结果表明:随冷却速度的增大,实验钢的γ/α相变开始温度逐渐降低,贝氏体相变开始温度先升高到一个平台,随冷却速度的进一步增加又降低,晶粒细化;随终轧温度的降低,实验钢的动态连续冷却转变曲线整体向左上方移动,网状铁素体和晶内铁素体明显减少,晶粒略有细化;经四种温度终轧后以3℃.s-1的冷速冷却到室温的四个试样中,唯独950℃终轧的试样中未观察到贝氏体. The continuous cooling expansion curve of 36Mn2V steel after four kinds of finishing rolling temperature was measured by Gleeble-1500 thermal simulator, and the continuous cooling transformation curve of the steel was obtained by metallographic - hardness method.The results show that with the cooling rate The initial temperature of the γ / α phase transformation of experimental steel decreases gradually, the initial temperature of bainite transformation increases to a plateau first, then decreases with the increase of cooling rate and the grain refinement; Decrease, the dynamic continuous cooling transformation curve of the experimental steel moves to the left and up, the reticular ferrite and intragranular ferrite decrease obviously, the grain is refined slightly; after the four temperature finish rolling, 1 cooling rate cooled to room temperature four samples, except 950 ℃ final rolling of the sample is not observed in the bainite.