Study of Microstructure, Phase Composition and Oxidation Resistance of High-Entropy Alloys Al_0.25CoCrFeNi and Al_0.25CoCrFeNiCuAg_x (x = 0, 0.1, 0.2)

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发表日期：

2024年8月8日

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O. V. Samoilova,
I. I. Suleymanova,
N. A. Shaburova,
E. A. Trofimov

摘要

Abstract—The microstructure, phase composition, and oxidation resistance of as-cast high-entropy alloys (HEAs) Al_0.25CoCrFeNi and Al_0.25CoCrFeNiCuAg_x (x = 0, 0.1, 0.2) have been studied. Oxidation was carried out at 700°C for 50 h in air. During the experiment, curves for the dependence of the specific weight gain on the exposure time were plotted. It has been shown that the introduction of copper has a slight effect on the resistance of the base Al_0.25CoCrFeNi HEA to oxidation, while additional (to copper) alloying with silver worsens the resistance of the samples to high-temperature gas corrosion.

Study of Microstructure, Phase Composition and Oxidation Resistance of High-Entropy Alloys Al0.25CoCrFeNi and Al0.25CoCrFeNiCuAgx (x = 0, 0.1, 0.2)

摘要

Study of Microstructure, Phase Composition and Oxidation Resistance of High-Entropy Alloys Al_0.25CoCrFeNi and Al_0.25CoCrFeNiCuAg_x (x = 0, 0.1, 0.2)