Microstructural variations in cast B4C-reinforced aluminium matrix composites (AMCs)

Abstract The present work introduces a cost-effective and reliable casting technique to overcome the wetting problem between B 4 C and liquid aluminium metal as well as the formation of undesirable phases at the interface using K 2 TiF 6 flux. For this aim, experimental work was carried out using B 4 C powders with different particle sizes to reinforce commercially available aluminium using casting technique. It was shown that B 4 C addition with bigger particle size resulted in better microstructure with free of agglomerated particles.