Stir Casting and Successive Rolling of Aluminium Alloy 2218 MMCs Reinforced by High-Entropy Alloy Particles

Abstract

Al0.5CoCrFeNi high-entropy alloy (HEAp) reinforced AA2218 metal matrix composites (MMCs) by stir casting and successive rolling. Mechanical characteristics of the AA2218 HEAp MMCs are analysed. The stir-casted AA2218 HEAp MMCs' ultimate tensile strength rose by 74.3 percent when HEAp was added at a weight percentage of 4 wt percent. When the MMCs were made by rolling, they had greater mechanical qualities than those made by RTR. Higher rolling deformation and lower HEAp mass fraction led to greater mechanical characteristics discrepancies between the AA2218 HEAp MMCs formed by CR and RTR. In the AA2218 HEAp MMCs after RTR, there were voids that were not present in the CR MMCs. Micro holes and the mechanical properties of metal matrix composites were also discussed in detail.