A Comparative Review on Mechanical and Tribological Properties of Al-TiB₂ Composites Fabricated by Stir Casting and Squeeze Casting Techniques

In recent years, metal matrix composites that are composed of aluminium alloys have played a critical role in the displacement of the preponderance of traditional materials. These composites are advised because to their superior mechanical and physical properties. Review the several studies on Al–TiB₂ composites made using squeeze and stir casting methods in this page. According to the review, multi-pass stirring in FSP greatly improves the interfacial bonding and reinforcement dispersion, which in turn improves the mechanical characteristics of Al–TiB₂ composites. Most studies utilize the cost-effective liquid metallurgy method for composite fabrication. Although ductility remains relatively constant, hardness, tensile strength, and abrasion resistance are consistently enhanced as the TiB₂ content increases. In comparison to stir casting, squeeze casting exhibits superior mechanical and tribological performance due to improved particulate distribution, reduced porosity, and stronger interfacial bondings. Stir casting, however, results in moderate properties due to inhomogeneous TiB₂ dispersion. Overall, squeeze casting proves more effective in achieving high-performance Al–TiB₂ composites.