Effects of cryogenic temperature and grain size on fatigue-crack propagation in the medium-entropy CrCoNi alloy

CrCoNi-based high-entropy alloys have demonstrated outstanding mechanical properties, particularly at cryogenic temperatures. Here we investigate the fatigue-crack propagation properties of the equiatomic, single-phase, face-centered cubic, medium-entropy alloy (MEA), CrCoNi, that displays exception...

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Veröffentlicht in:	Acta materialia 2020-11, Vol.200 (C), p.351-365
Hauptverfasser:	Rackwitz, Julian, Yu, Qin, Yang, Yang, Laplanche, Guillaume, George, Easo P., Minor, Andrew M., Ritchie, Robert O.
Format:	Artikel
Sprache:	eng
Schlagworte:	Crack closure Cryogenic temperatures Fatigue-crack propagation Grain size effects Medium-entropy alloy
Online-Zugang:	Volltext
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