Equilibrium between Aluminum and Oxygen in Liquid Nickel and Nickel-Iron Alloy Fujio ISHII and Shiro BAN-YA Synopsis : The deoxidation equilibrium of aluminum in liquid nickel saturated with solid alumina has been measured at the temperature ranging from 1823 K to 1973 K using the sampling technique with a view to understanding the equilibrium between aluminum and oxygen in liquid nickel. The temperature dependence of the equilibrium constant for the deoxidation reaction was presented to be

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... e the deoxidation product, log K'Al(Ni)(=log[%Al]2[%O]3), was expressed as follows: The deoxidation of liquid nickel-iron binary alloys with aluminum was measured up to 50 mass pct iron. The activity coefficients of aluminum and oxygen in nickel-iron alloys based on pure liquid nickel were estimated by the following equation : up to around 10 mass pct iron at 1923 K.