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碳溶解度平衡实验表明，1400℃时Mn－Fe合金熔体在全部浓度范围内碳溶解度可用下式计算：XC=0.1886+0.1119XMn或XC=0.2703－0.1006XFe.通过热力学推导和计算，得到如下热力学数据：（1）Fe－C系，（2）Fe－Mn－C系，
The carbon solubility equilibrium experiment shows that the carbon solubility of Mn-Fe alloy melt at 1400 ℃ can be calculated by the following formula: XC = 0.1886 + 0.1119XMn or XC = 0.2703-0.1006XFe. Through thermodynamic derivation and calculation, the following thermodynamics Data: (1) Fe-C system, (2) Fe-Mn-C system,