Analysis of Al6061-Fe2O3 Metal Matrix Composites via Multiple Passes of Equal Channel Angle Pressing Subjected to Severe Plastic Deformation

Abstract

Aluminum-metal matrix composites
have been widely used in engineering and nonengineering
applications for 30 years due to their
versatile properties. The properties of composite
materials can be improved by subjecting the
composite to severe plastic deformation (SPD).
ECAP (Equal Channel Angular Pressing) is one of
the most commonly used SPD methods to create
ultrafine particles within structures. In this study,
AMC was fabricated using HeAl6061 alloy as the
matrix material and hematite (Fe2O3) as the
reinforcement material. Stir casting technology was
used to fabricate composites with compositions
varying from 0% to 4% in 1% increments. The
sample passed through his ECAP twice. The strain
on the sample deformation increased with increasing
reinforcement rate and from the first pass to his
second pass. The performance of composite
materials before and after SPD was studied by
evaluating various properties, and an improvement in
properties was observed.
Keywords: Metal Matrix Composites, Hematite,
Severe Plastic Deformation, Equal Channel Angular
Pressing, Ultra-fine grains, Scanning Electron
Microscope.
Characterisation of Al6061-Fe2O3 Metal Matrix
Composites Subjected to Severe Plastic Deformation
for Multiple Passes through Equal Channel Angular
Pressing.