Microstructure and sliding wear behavior of AA6360/(TiCÂ +Â B4C) hybrid surface composite layer synthesized by friction stir processing on aluminum substrate

► Fabrication of AA6360/(TiC + B4C) hybrid surface composite layers using FSP. ► Homogeneous distribution of TiC and B4C particles in the surface composite layers. ► Little or no comminution of ceramic particles during stir processing. ► Hybrid surface composite exhibited highest wear resistance. ► TiC and B4C particles changed the morphology of wear debris.