The microstructures and mechanical properties of a 5vol%SiC/AA2024 nanocomposite fabricated by powder metallurgy

A 5vol%SiC/AA2024 nanocomposite was prepared by a powder metallurgy routine involving high energy ball milling (HEBM), spark plasma sintering (SPS) and hot extrusion. The microstructures and mechanical properties of the 5vol%SiC/AA2024 nanocomposite samples prepared using different HEBM and SPS times were investigated in detail. It was found that increasing the milling time from 12 to 24 h caused refinement of Al grains and better dispersion of...