Effect of Doping Al on the High-Temperature Oxidation Behavior of Ni–11Fe–10Cu Alloy
2020
The high-temperature oxidation behavior of Ni–11Fe–10Cu–6Al alloy at 750, 850 and 950 °C in air was investigated. Its oxidation kinetics follow the parabolic rate law at all temperatures and are significantly lower than those of Ni–11Fe–10Cu and Ni–11Fe–10Cu–6Al–3Y alloys. The doping of Al to Ni–11Fe–10Cu alloy can improve not only the adherence of oxide scale but also the oxidation resistance. The structure and growth mechanism of multilayer oxide scale formed on Ni–11Fe–10Cu–6Al alloy are studied. The effect of doping Al on the high-temperature oxidation behavior of Ni–11Fe–10Cu alloy is also discussed.
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