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通过比较C-Si-Mn-Cr-Mo和C-Si-Mn-Cr两种实验钢的连续冷却转变曲线,分析了合金元素Mo对热轧双相钢连续冷却过程相变规律和组织演变的影响,探讨了Mo对热轧双相钢生产工艺的影响。结果表明,Mo元素降低贝氏体开始转变温度,促使奥氏体亚稳区的形成,还可以强烈阻碍铁素体的转变过程,略微减小铁素体晶粒尺寸,并且提高实验钢的显微硬度。这两种实验钢通过合适的生产工艺均可以用来生产热轧双相钢。
By comparing the continuous cooling transformation curves of C-Si-Mn-Cr-Mo and C-Si-Mn-Cr two types of experimental steel, the phase transformation and microstructure evolution of the hot- Influence, discussed the impact of Mo on hot-rolled dual-phase steel production process. The results show that Mo can reduce the initial transformation temperature of bainite and promote the formation of austenite metastable zone, but also strongly hinder the transformation process of ferrite, reduce the ferrite grain size slightly and enhance the apparent Microhardness. Both experimental steels can be used to produce hot-rolled dual-phase steels through suitable production processes.