Fabrication of Nanostructured Al-4.5wt%Cu Alloy and Al-4.5wt%Cu/SiC Composite via Mechanical Alloying

Fabrication of alloys in the solid state and composites via mechanical alloying process has been studied by the earlier researchers. The process of nanocrystalline structure formation of Al-4.5wt%Cu alloy and Al-4.5wt%Cu/SiC composite during mechanical alloying process were evaluated in the current work. X-ray diffraction patterns of the monolithic and composite samples showed that increasing the milling time and impact force led to increasing the diffusion rate as because of increasing the dislocations, micro-strain, lattice parameter and decreasing the crystallite size. As a result of this, formation of Al-4.5wt%Cu alloy was occurred. The interpretation of data resulted have been discussed in details.

Keywords:

Mechanical Alloying , Nanocrystalline , Microstrain , Al-4.5wt%Cu