Microstructure and properties of Fe x CrMnAlCu high-entropy alloy

Fe x CrMnAlCu ( x = 0, 0.5, 1, 1.5, 2) high-entropy alloys were prepared by vacuum arc melting in this study. The effects of the element Fe on the microstructure evolution, mechanical properties, and wear behaviour of Fe x CrMnAlCu were evaluated. Results show that all Fe x CrMnAlCu consisted of den...

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Veröffentlicht in:Materials science and technology 2023-07, Vol.39 (10), p.1245-1254
Hauptverfasser: Feng, Li, Yuan, Yudong, Bian, Chunhua, Wang, Ning, Ma, Kai
Format: Artikel
Sprache:eng
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Zusammenfassung:Fe x CrMnAlCu ( x = 0, 0.5, 1, 1.5, 2) high-entropy alloys were prepared by vacuum arc melting in this study. The effects of the element Fe on the microstructure evolution, mechanical properties, and wear behaviour of Fe x CrMnAlCu were evaluated. Results show that all Fe x CrMnAlCu consisted of dendrites (disordered BCC) and interdendritic (disordered FCC) structures. With an increase in Fe, uniformly distributed rod-like precipitates (Φ50 nm × 300 nm) rich in Al and Cu (ordered BCC) were formed in the dendrites; the volume fraction of the dendrites increased gradually, whereas the content of the interdendritic structures decreased. Through mechanical property testing, it was found that the content of precipitates significantly affected the strength and hardness of the Fe x CrMnAlCu.
ISSN:0267-0836
1743-2847
DOI:10.1080/02670836.2022.2164130