吸热式氮基气氛与钢复杂平衡体系的热力学计算(Ⅰ)

本文用独立组元法对吸热式氮基气氛与碳钢间的多元反应复杂平衡体系在前人简单反应的工作基础上进行了热力学计算,得到了有关的方程式。对体系中各组分在不同温度下的平衡组成和碳势,以及不同氮含量时气氛的碳势进行了计算。计算结果表明,在一定温度下,气氛的碳势随CO_2浓度的增加而减少;在一定CO_2含量时,炉温越高,则气氛的碳势越低。

The Thermodynamic Study of Complex Equilibrium System of Endothermal Nitrogen-Base Controled Atmosphere and steel(I)

In this paper, the thermodynamic calculation for the complex chemical equilibrium system of nitrogen-base atmosphere and steel has been carried out by use of a independent component method on the basis of the previous work on simple chemical equilibrium. The equilibrium compositions and the carbon potentials of controled atmosphere at different temperatures and the carbon potentials of controled atmosphere at different compositions of nitrogen were Calculated. The result shows that the carbon potential decreases with increasing of concentration of carbon dioxide under constant temperature, and the carbon potential of atmosphere decreases with increasing of furnace temperalure at constant composition of carbon dioxide.