The corrosion behavior of Cr23C6 was investigated at elevated temperatures in alkaline solutions. The corrosion reaction of chromium carbide occurs via an electrochemical process. The rate of Cr23C6 dissolution in alkaline solution is rapid compared to that in acid, and its behavior is closely related to that of its metal constituent. Chemical analysis of the corrosion products reveals that CrO4= and CO3= are the two major components, although HCO2− and C2O4= are also formed.

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National Association of Corrosion Engineers
1985
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