变形量和冷却速度对Q235钢晶粒细化的影响

Effect of reduction and cooling rates on grain refining of Q235 steel

以钢种为Q2 35 ,直径为14的圆钢精轧最后三道为研究对象 ,采用Gleeble 15 0 0D热模拟实验机研究并分析了不同变形工艺和冷速对实验钢组织的影响 ,同时针对实验结果 。

The finishing rolling process of the last three passes was studied for Q235 rod steel whose diameter is 14mm. Effect of the different deformation and cooling rates on Q235 steel was analyzed by using hot simulator（ Gleeble 1 500 D）and a more reasonable grain refining process was provided.