High-temperature oxidation behavior of an equimolar AlCuFeMn multicomponent alloy was investigated at 500 °C and 1000 °C for 50 h of exposure in ambiance. Relative weight gain after oxidation was 0.5 mg cm⁻² and 0.3 mg cm⁻² at 500 °C and 1000 °C, respectively. At 500 °C, the oxidized surface comprised of a manganese-rich oxide layer with an aluminum oxide sublayer, while only an aluminum-rich oxide layer was observed at 1000 °C. The alloy microstructure was temperature stable and consisted of an FCC, BCC, and a minor Al₁₁Mn₄ phase. The alloy's oxidation resistance compared well with 9% Cr steel and nickel-based superalloys suitable for high-temperature applications.

研究了等摩尔AlCuFeMn多组分合金在500°C和1000°C下暴露50 h的高温氧化行为。氧化后的相对重量增加在500℃和1000℃下分别为0.5mg cm ^-2和0.3mg cm ^-2。在500°C时，氧化表面由富锰氧化物层和氧化铝亚层组成，而在1000°C下仅观察到富铝氧化物层。合金的微观结构是温度稳定的，并且由FCC，BCC和次要的Al ₁₁ Mn ₄相组成。与适用于高温应用的9％Cr钢和镍基高温合金相比，该合金的抗氧化性很好。