溶融鉄合金中炭素と酸素の活量について
1970 年 56 巻 14 号 p. 1809-1818
詳細
1970 年 56 巻 14 号 p. 1809-1818
The effects of alloying elements on the activity coefficient of carbon and oxygen in liquid iron have been studied by measuring the equilibrium, C (in Fe) + CO2=2CO, at a temperature of 1560°C. The activity coefficient of carbon is increased by the addition of cobalt and decreased by molybdenum, tungsten, vana-dium, niobium and tantalum. The activity of oxygen in Fe-C-O-j systems containing the-deoxidizing elements such as vanadium and niobium will be expressed by applying the first terms and cross product terms in WAGNER'S use of the Taylor series. Phosphorus, nickel, and cobalt decrease the product of carbon and oxygen in liquid iron, and vanadium, niobium, chromium, and molybdenum increase it.
