Assessment of Al Deoxidation Equilibrium in Liquid Iron
Hiroyasu ITOH, Mitsutaka HINO, Shiro BAN-YA
Previous literature thermodynamic values for strong deoxidizer such as aluminium are not in good agreement with the observed results and measurements. This discrepancy between predicted and measured results is due to an incomplete expression of the activities of dissolved oxygen and deoxidizer in current literature. Namely, only first order interaction parameters are available despite the very strong interactions among the dissolved elements.
In the present work, the aluminium-oxygen equilibrium in liquid iron reported by other investigators was assessed to develop values for the first and second order interaction parameters.
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