Influence of Mo/Cr ratio on the lamellar microstructure and mechanical properties of as-cast Al0.75CoCrFeNi compositionally complex alloys

•All Al16Co21Cr21-xFe21Ni21Mox CCAs (x ≥ 10 at%) showed lamellar microstructures.•Each as-cast CCA exhibits three phases including FCC and B2.•The third phase is either BCC (A2) for x ≤ 2, σ for x = 4 or R for x ≥ 6 at.%.•For x = 10, the alloy is hard and brittle due to the large R-phase volume frac...

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Veröffentlicht in:	Journal of alloys and compounds 2022-04, Vol.899, p.163183, Article 163183
Hauptverfasser:	Asabre, Alex, Gemagami, Parham, Parsa, Alireza Basir, Wagner, Christian, Kostka, Aleksander, Laplanche, Guillaume
Format:	Artikel
Sprache:	eng
Schlagworte:	Al0.7CoCrFeNi high-entropy alloys Alloy design Body centered cubic lattice Brittleness Casting alloys Cavitation Chromium Ductility Eutectic microstructures Face centered cubic lattice Fracture surfaces Grain boundaries Intergranular fracture Intermetallic phases Lamellar structure Mechanical properties Microhardness Microstructure Molybdenum Necking Phase boundaries Sigma phase Tensile properties Tensile strength Ultimate tensile strength Widmanstätten microstructures
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