Effect of Alumina Content on the Mechanical Properties of AA5083/AL₂O₃ Composites Fabricated by Warm Accumulative Roll Bonding

Abstract

In the present study, aluminum metal matrix composites reinforced with alumina particles are fabricated through the warm accumulative roll bonding (ARB) process. The microstructure of the composites shows the excellent alumina particle distribution in the aluminum matrices after four cycles of ARB. The microstructure and mechanical properties of composites have been studied versus different contents of alumina particles by tensile test, Vickers microhardness test, and scanning electron microscopy. The results indicated that strength and average microhardness of the ARB-processed material improved by increasing volume percent of alumina particles.