article · Materials science forum
This research investigates the impact of heat treatment and high-temperature oxidation on the phase transformation and performance of AlCrFeCuNi-Nb high-entropy alloys (HEAs). The alloys were produced using laser deposition and methodically heat-treated to enhance their structural stability. X-ray diffraction (XRD) was employed for phase analysis to examine phase alterations resulting from Nb addition and thermal exposure. Results indicate that Nb boosts phase stability, facilitates the production of protective oxide layers, and increases resistance to high-temperature oxidation. The enhanced alloy demonstrated exceptional oxidation resistance and mechanical properties. These findings underscore the promise of Nb-doped HEAs for engineering applications that necessitate resilient, high-performance materials capable of enduring harsh temperatures and corrosive conditions.
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DOI: 10.4028/p-oi9gem
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