The results revealed that the microstructure of hot rolled steels consists of pro-eutectoid ferrite and granular structure/granular bainite.

• 采用扫描、透射电镜对不同钒含量的低钼耐火钢的组织进行分析,确定出热轧状态的组织为先共析铁素体、粒状组织/粒状贝氏体。