Analysis of stir die cast Al-SiC composite brake drums based on coefficient of friction

► Composites' microstructure has uniform SiC-particle distribution and good interface bonding. ► Friction coefficient of composite brake drums increased with SiC-particle & Heat Treatment. ► Friction coefficient of composite brake drums was higher than cast iron drums. ► Composite brake drum and shoe interface temperatures was lower than that with CI. ► SEM observations of the composite brake drum rubbing surface show grooving and pitting.