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由多元钢马氏体相变热力学计算式: 导出四种钢(20Cr2Ni4A,25MnTiBRE,20CrMnT.En354)碳氮共滲及渗碳后Ms的计算式。计算所得三种钢共渗后表层的Ms及残余奥氏体量γ_(?),与典型实验数据很好吻合。文中并给出了En354钢渗碳层中Ms的分布曲线。
Multivariable martensitic transformation from the thermodynamic formula: Derived four kinds of steel (20Cr2Ni4A, 25MnTiBRE, 20CrMnT.En354) carbonitriding and carburizing Ms after the formula. Calculated Ms and residual austenite amount γ_ (?) Of the surface after the three kinds of steel were infiltrated were in good agreement with the typical experimental data. In the paper, the distribution curve of Ms in En354 steel carburized layer is given.