An assessment on the stability of the eutectic phases in high entropy alloys

To overcome the limited mechanical properties of single-phase FCC/BCC high entropy alloys, a large effort is being made towards the development of eutectic composites. The eutectic/near eutectic high entropy alloys (EHEAs) with alternate lamellar phases provide an optimum balance between strength and ductility. Therefore, CoCrFeNiNbx (0.45 < x < 0.65) and CoCrFeNiTay (0.2 < y < 0.5) EHEAs comprised of FCC and Fe2Nb/Co2Nb type Laves phase were...