多元素共存溶鉄中の酸素の活量について
溶鋼中の酸素の活量について-II
1965 年 51 巻 6 号 p. 1114-1121
詳細
1965 年 51 巻 6 号 p. 1114-1121
The equilibrium of oxygen in liquid iron alloys containing nickel, cobalt, tungsten and molybdenum simultaneously with H2-H2O mixtures has been studied at 1600°C.
Effects of alloying elements on the activity coefficient of oxygen in liquid iron alloys have been measured, and the obtained values of parameters compared with the calculated ones based on the equations introduced by C. Wagner.
As the concentrations of alloying elements increase in liquid iron, the equation comes to be unfit for our results.
The empirical formula was given for the Fe-Ni-Co-W-Mo-O system as follows:
log f(Ni, Co, W, Mo)O(corr)=log f(Ni)O+log f(Co)O+log f(W)O+log f(Mo)O
+0.000116[%Ni]·[%Co]-0.000163[%Ni]·[%W]
+0.000082[%Ni]·[%Mo]-0.000055[%Co]·[%W]
+0.000003[%Co]·[%Mo]-0.000266[%W]·[%Mo]
