Oxidation kinetics of an Fe-31.8Mn-6.09Al-1.60Si-0.40C alloy at temperatures from 600 to 900 °C

An Fe-31.8Mn-6.09Al-1.60Si-0.40C alloy was subjected to thermogravimetric tests, in atmospheres of pure oxygen and synthetic air. The alloy showed good oxidation resistance, especially at 600 and 700 °C in air and at 600 °C in oxygen. Owing to autocorrelation identified in the results, kinetic data were analyzed by the statistical method of Cochrane and Orcutt. Parabolic kinetic behaviour was observed for the Fe-Mn-Al-Si-C alloy oxidation process in air at 600, 700 and 800 °C and in pure oxygen at 900 °C.