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对含有不同碳、锰、硅的16Mn钢进行了控轧控冷实验,测定了各项力学性能,对其主要组织参量铁素体晶粒平均直径(d_F)及珠光体百分数(Pe％)进行了定量金相分析,进行了各项力学性能对16Mn钢中各元素含量和二主要组织参量的多元线性逐步回归分析,获得控轧控冷16Mn钢各项力学性能与钢的化学成分和组织参量之间定量关系的数字表达式。根据数学表达式所提供的信息,参照二组织参量对钢的化学成分和控轧控冷工艺参数的多元线性回归方程,探讨了控轧控冷16Mn钢的强韧化机制。
Controlled rolling and controlled cooling experiments were carried out on 16Mn steel containing different carbon, manganese and silicon. The mechanical properties were measured and the main ferrite grain diameter (d_F) and pearlite percentage (Pe%) were measured. The quantitative metallographic analysis was carried out. The multi-linear and stepwise regression analysis of various mechanical properties on the content of each element in 16Mn steel and the two main microstructures was carried out. The mechanical properties of the controlled-rolling controlled-cooling 16Mn steel and the chemical composition and microstructure parameters The quantitative relationship between the number of expressions. According to the information provided by the mathematical expression, with reference to the multiple linear regression equations of the chemical composition of the steel and the parameters of the controlled rolling and controlled cooling process, the strengthening and toughening mechanism of controlled rolling and controlled cooling of 16Mn steel was discussed.