ACTIVITY OF OXYGEN IN LIQUID IRON ALLOYS

The equilibrium of gaseous H/sub 2/O-H/sub 2/ mixtures with liquied iron is used to establish the activity coefficient of dissolved oxygen as log f/sub 0/ = -0.20 STA%O!. Discrepancies in earlier work are explained or eliminated. Additions of cobalt, molybdenum, tungsten, and platinum increase the activity coefficient of oxygen whereas copper and gold decrease it. (auth)