Production of cast higher chromium carbide using self-propagating high-temperature synthesis

Abstract

The mechanisms of self-propagating high-temperature synthesis as they apply to cast chromium carbide have been examined. It is demonstrated that by optimizing the initial-mixture composition, it is possible to synthesize cast higher chromium carbide Cr3C2 with a 1.5–3 wt. % aluminum addition. Treating the final product with a hydrochloric acid solution enables the aluminum content to be reduced to 0.2 wt. %.