溶融鉄合金中の硫黄の活量
1981 年 67 巻 6 号 p. 746-754
詳細
1981 年 67 巻 6 号 p. 746-754
The effect of alloying element on the activity coefficient of sulphur in liquid iron has been studied by equilibrating liquid iron alloy with the H2-H2S gas mixture at 1550°C in a resistance furnace.
The results obtained show that the elements such as C, Al, Si, P, Mo and W increase the activity coefficient of sulphur, while V, Cr and Nb decrease as follows:
log f CS=0.12[%C] C<3%
log f A1S=0.041[%Al] Al<7%
log f S1S=0.075[%Si] Si<7%
log f PS=0.035[%P] P<9%
log f VS=-0.019[%V] V<11%
log f CrS=-0.011[%Cr] Cr<15%
log f NiS=0.0
log f NbS=-0.013[%Nb] Nb<12%
log f MoS=0.0064[%Mo] Mo<20%
log f WS=0.011[%W] W<15%.
