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用Mo反应室密封,Pb蒸气-Fe液平衡法研究了1300—1400℃范围内Fe-C-Pb溶液的热力学性质,通过测定C对Pb在Fe液中的溶解度的影响,求得C与Pb的一阶、二阶活度相互作用系数与温度的关系: e_(Pb)~C=9205(1/T)-4.578;γ_(Pb)~C=-1047(1/T)+0.512 用石墨坩埚石英管真空密封装置,Pb蒸气-Fe液平衡法测得1300℃时Fe-C_(sat)-Pb-Ce溶液中Ce与Pb的活度相互作用系数:e_(Pb)~(ce)=-2.11;e_(ce)~(Pb)=-1.43.
The thermodynamic properties of Fe-C-Pb solution in the range of 1300-1400 ℃ were studied by using Mo chamber sealed with Pb vapor-Fe liquid equilibrium method. The effect of C on the solubility of Pb in Fe solution was studied. (Pb) ~ C = 9205 (1 / T) -4.578; γ_ (Pb) ~ C = -1047 (1 / T) +0.512 The relationship between the first-order and second- The activity of Ce and Pb in the Fe-C sat -Pb-Ce solution at 1300 ℃ was measured by the Pb vapor-Fe liquid-equilibrium method using a quartz-tube vacuum sealing device with a crucible, -2.11; e_ (ce) ~ (Pb) = -1.43.