Abstract

Abstract The objective of this study was to investigate the synthesis and characterization of aluminum alloy AA8011 reinforced with various amounts (0, 4, 8 and 12 wt.-%) of fly ash (FA) particles by the stir casting method. The wettability of fly ash particles in the matrix was improved by adding 0.5 wt.-% of Mg into the solution. Fly ash particles were combined with the semi-solid aluminum solution. The microstructure and mechanical properties of the fabricated aluminum matrix composites were analysed. The optical and SEM with EDX revealed a homogeneous dispersion of fly ash particles in the aluminum matrix composites. The aluminum matrix composites were characterized by a homogeneous distribution of fly ash particles having clear boundaries and good bonding qualities to the aluminum matrix. Mechanical properties such as hardness and tensile strength improve with an increase in weight percentage of fly ash particulates in the AMCs.

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