Phase, Microstructure and Tensile Strength of Ultrasonically Stir Casted Al6061-TiC-Graphite Hybrid Metal Matrix Composites

This study investigates the microstructural and mechanical behavior of Al6061-TiC-Graphite hybrid metal matrix composites fabricated by the ultrasonically stir casting process. The effects of TiC and graphite on the phase, microstructure, hardness, and tensile strength of the composites are evaluated. Scanning electron microscopy, Energy dispersive spectroscopy, and X-ray diffraction analysis techniques were used to investigate the microstructure and phase composition of the composites. The results show that the addition of TiC and graphite improves the microstructure and mechanical properties of the composites. The maximum hardness and tensile strength were obtained for the composite with 2wt.% TiC and 1wt.% graphite. The study provides insight into the development of advanced metal matrix composites with improved mechanical properties for potential use in various industrial applications.