Synthesis of high entropy alloy AlCoCrFeNiCuSn reinforced AlSi7Mg0.3 based composite developed by solid state technique

Abstract

The synthesis of high entropy alloy (HEA) AlCoCrFeNiCuSn reinforced AlSi7Mg0.3 a composite was carried out by the Friction Stir Process Technique. The equal weight percent of AlCoCrFeNiCuSn HEA entropy alloys were ball-milled to obtain uniform powder morphology of entropy elements in powder form. The investigation successfully achieved uniform distribution of the HEA AlCoCrFeNiCuSn within the AlSi7Mg0.3 matrix, ensuring a consistent microstructure throughout the composite material. This uniformity significantly contributed to the material's mechanical characteristics, resulting in remarkable improvements in tensile strength (37.02 %) and hardness (52.45 %) concerning base matrix material. Moreover, the strong interfacial bond established between the HEA and AlSi7Mg0.3 phases enhanced the structural integrity of the composite, making it well-suited for demanding applications such as structural parts, wings, fuselage components, engine components, pistons, marine industry for building structures. The research also revealed that this composite exhibited superior corrosion and wear resistance properties, making it a promising material for applications in aggressive environments such as aerospace components, chemical processing equipment, drilling equipment, valves, marine structures, shipbuilding, and offshore equipment..