溶融鉄-ニッケルおよび鉄-クロム系合金中の炭素と酸素の活量について
1963 年 49 巻 2 号 p. 138-143
詳細
1963 年 49 巻 2 号 p. 138-143
The equilibrinm of CO-CO2 gas mixture with the carbon and the oxygen in molten ironnickel and iron-chromium alloys was studied in the range of 0-100% Ni and 0-30% Cr at 1560°C, and following experimental results were obtained:
1. The relationships between the activity coefficients of the carbon or the oxygen and dissolved elements are expressed by the following equations.
∂logf (Ni) C/∂%Ni=0·011……<70%Ni
∂logf (Cr) C/∂%Cr=-0·033……<25%Cr
∂logf (Ni) o/∂%Ni=0·005……<60%Ni
2. The prodnct of the carbon and the oxygen in molten iron is decreased by addition of nickel, while it is increased by addition of chromium.
