摘要
The oxidation behavior of an equimolar FeCoNiCrMn high-entropy alloy was studied in four oxygen-containing atmospheres over the oxygen partial pressure range from 10 to 10 5 Pa at 950 °C. The oxidation kinetics of the alloy followed the parabolic rate law, and the oxidation rate constants increased with increasing oxygen partial pressure. Triplex scales formed on the alloy consisted of an exclusive outer layer of Mn 3 O 4 , a heterophasic intermediate layer of Mn 3 O 4 , (Mn,Cr) 3 O 4 , and Cr 2 O 3 , and an exclusive inner layer of Cr 2 O 3 .