Archives of Metallurgy and Materials

Abstract

Fabrication oF aluminum matrix composite reinForced with al 0.5 cocrcuFeni high-entropy alloy particlesThe aluminum composite with dispersed high entropy alloy were developed by stir casting involving the powder-in-tube method. First, al 0.5 CoCrCuFeni high entropy alloy (Hea) powder was made by mechanical alloying, and the powder was extruded in a tube-type aluminum container to form Hea precursor. The extruded Hea precursor was then dispersed in the aluminum matrix via stir casting. as a result, Fe-Cr-ni based high-entropy phases was uniformly formed in the aluminum matrix, revealing ~158, 166, 235% enhancement of tensile strength by incorporating 1, 3, and 5 wt% Hea particles, respectively.