Effects of particulate reinforcement and heat treatment on the hardness and wear properties of AA 2024-MoSi2 nanocomposites

► Synthesis of 2024-MoSi2 nanocomposite using mechanical alloying procedure. ► Effect of aging heat treatment on the hardness improvement of the nanocomposites. ► Effect of aging treatment on the wear behavior of the aluminum matrix nanocomposites. ► The limitation of adding nanoscale reinforcement to the aluminum alloys.