Abstract
Stir casting is an economical method to produce aluminum matrix composites. In the
present work, composites of aluminum alloy AA6061 reinforced with various amounts (0, 5,
10 and 15wt. %) of TiC particles were prepared by stir casting technique. X-ray diffraction
patterns of the prepared composites clearly revealed the incorporation of TiC particles
without the presence of any other compounds. The microstructures of the composites were
studied using optical and scanning electron microscopy. It was observed that the TiC particles
distributed all over the composite and properly bonded to the matrix alloy. Local clusters of
TiC particle were also seen in a few places. The result shows that the reinforcement of TiC
particles enhances the microhardness, ultimate tensile strength and wear resistance of the
composite. The details of fracture morphology, worn surface and wear debris are also
presented in this paper.