本文根据现有文献中的数据,将Sharma等的规则溶液模型推广到多元系,计算了含Cr,Mn,Si的20Cr,30Cr,40Cr,40Mn2,20CrMn,35CrMn2,38Crsi以及30CrMnSi等低碳低合金钢在其两相区各温度下α和γ两相的平衡浓度、两相的相对量及A_(e3)温度。计算得到的一系列合金的A_(e3)温度与实验值A_(c3)吻合较好。
The α/γ phase boundary, relative proportion of the two phases and A temperature have been calculated by extending the Sharma et al. 's regular solution model to multicomponent commercial steels 20Cr, 30Cr, 40Cr, 40Mn2, 20CrMn, 35CrMn2, 38CrSi and 30CrMnSi with the thermodynamical data taken from available literatures. The calculated A are in good agreement with the experimental data.
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