Refractory high-entropy alloys: A focused review of preparation methods and properties

Future prospects of high-entropy alloys as next-generation industrial electrode materials

“…53 Phase structure modication of HEAs has evolved as an effective approach to increase the strength of the RHEA systems. 39,40,52,54 Eutectic HEAs (EHEAs) typically have FCC and BCC crystal lattice structures and exhibit two different properties, such as ductility and strength. Sumanta et al reported an equiatomic CoCuFeNiTi EHEA with BCC and FCC structures, which exhibited optimum workability at high temperature and can be used in high temperature electrochemical applications such as high-temperature solid oxide electrolyzer cells (SOECs).…”

Synergy of strength–ductility in HfMoTaTiZr refractory high entropy alloy through Cr addition

“…Among various potential candidates, such as ceramics, 3–5 intermetallic compounds, 6,7 and refractory metals, refractory high-entropy alloys (RHEAs) 8–12 have drawn considerable attention in the past decade because of their very encouraging properties, for instance, high melting points, superior mechanical properties at both room temperature and elevated temperatures, 13–18 which makes RHEAs of great interest for high-temperature application. Senkov et al 18,19 first reported two RHEAs, MoNbTaW and MoNbTaVW by arc melting followed by a hot isostatic press.…”

Angular-dependent interatomic potential for large-scale atomistic simulation of W-Mo-Nb ternary alloys

“…Such alloys have been the subject of intensive research over the last 15-20 years. The nowadays widely discussed high entropy alloys [7,8,9] constitute a special case of CCAs, for which the number of alloying elements equals five or more. But even if the number of elements involved is only three or four, a high configurational entropy and severe lattice distortion induce qualitative changes in the material properties of CCAs compared to pure metals.…”