Thermodynamics of Oxygen Solutions in Fe–Co–Cr Melts Containing Aluminum


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Abstract

Abstract—Thermodynamic analysis of the influence of aluminum on the oxygen solubility in the Fe–Co–Cr melts at 1873 K is performed. Aluminum in the Fe–Co–Cr melts is characterized by a high deoxidation ability. At a low aluminum content in these melts, it practically does not affect the oxygen content, which is determined by the chromium content. At a higher aluminum content after a change in the mechanism of interaction of chromium and aluminum with oxygen (when aluminum determines the oxygen solubility in a melt), the oxygen concentration decreases significantly, passes through a minimum, and increases.

About the authors

A. A. Aleksandrov

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Author for correspondence.
Email: a.a.aleksandrov@gmail.com
Russian Federation, Moscow, 119334

V. Ya. Dashevskii

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Author for correspondence.
Email: vdashev@imet.ac.ru
Russian Federation, Moscow, 119334

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