【摘要】 用银浴法在1450℃测定了两组Fe-C-Si合金熔体的等活度(α_Si)数据,由此计算了活度交互作用系数ε_Si^C,ρ_Si^C及ρ_Si^Si,C;用Gibbs-Duhem方程积分计算了Fe-C-Si三元熔体的碳的活度系数lnγ_C。更多还原

【Abstract】 Iso-silicon activity data for two sets of Fe-C-Si melt samples were determined by means of the common silver bath method at 1450℃. The experimental data were used to estimate the activity interaction coefficients εSiC, ρSiC and pSiSi,C in connection with the data of Fe-Si binary system determined in a previous work. The activity coefficient of carbon in Fe-C-Si ternary melt and its related activity interaction coefficients were calculated by the Gibbs-Duhem equation integration.更多还原