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本文叙述在国内典型轧机作业线上,实施钛处理C-Mn钢的TMCP工艺(Thermo-Mechanical Control Process)的理论基础和研究结果,指出采用“M”型控制轧制和轧后加速冷却,可有效地细化铁素体晶料,从而获得比正火钢还要好的强度和初性水平。文中所列的回归公式,可定量地计算加热、控制轧制条件下的奥氏体和铁素体的晶粒尺寸;变形条件下的CCT曲线和冷却条件对机械性能影响的实验结果,可供深入研究TMCP工艺的参考。
This paper describes the theoretical foundation and results of TMCP (Thermo-Mechanical Control Process) of Ti-treated C-Mn steels on typical domestic mill operation lines. It is pointed out that “M” type controlled rolling and post-rolling accelerated cooling Ferritic grains are effectively refined to obtain even better strength and initial levels than normalized steels. The regression equations listed in this paper can quantitatively calculate the grain size of austenite and ferrite under heating and controlling rolling conditions. The experimental results of CCT curves and cooling conditions on the mechanical properties under deformation conditions are available In-depth study of TMCP process reference.