In　this　study,　Ti3AlC2　particles　doped　aluminum　matrix　composites　were　prepared　by　ultrasonic　agitation　casting　method.　Microstructure,　mechanical　properties,　and　tribological　properties　of　pure　aluminum　and　Ti3AlC2p/Al　composites　were　characterized.　Influence　of　different　loads　(10,　20,　30,　and　40　N)　and　Ti3AlC2　contents　(1.0,　2.0,　3.0,　and　4.0　wt%)　on　the　tribological　behaviors　of　the　composites　were　studied.　Scanning　electron　microscopy　(SEM),　X-ray　diffraction　(XRD),　Energy　dispersion　spectroscopy　(EDS),　and　3D　laser　confocal　were　used　to　assist　the　analysis.　The　results　indicated　that　fine　and　uniformly　microstructure　and　the　optimum　comprehensive　mechanical　properties　were　exhibited　on　2.0　wt%-Ti3AlC2p/Al　composites.　The　abrasive　grooves　were　widened　and　deepened　with　an　increase　in　the　load.　The　abrasion　performance　of　composites　improved　distinctly　with　the　addition　of　the　Ti3AlC2　particles,　which　changed　the　wear　mechanism　from　adhesive　wear　to　abrasive　wear.　The　30　N　load　and　the　composites　of　2.0　wt%　Ti3AlC2　revealed　the　optimum　tribological　properties.　The　improvement　of　the　tribological　behavior　of　composites　was　attributed　to　the　refinement　of　microstructure,　the　improvement　mechanical　properties　and　the　three　dimensional　layered　Ti3AlC2　phases　with　self-lubricating　properties.　©　2021　Elsevier　Ltd　and　Techna　Group　S.r.l.