TitleSynthesis and tribological evaluation of aluminum-titanium diboride (Al-TiB2) metal matrix composite
SourceAsiatrib-2018, pp. 336-337
AuthorAmar Sheelwant, Suresh Kumar Reddy Narala, Palaparty Shailesh


Aluminum matrix composites (AMCs) have evolved into a special field of materials science and engineering by becoming a premise for consistent research due to their excellent strength, low density, improved wear resistance, and enhanced thermal properties. The essence of AMCs lies in their ability to offer countless opportunities to tailor material properties as per the design requirements. In the current investigation, AMC has been synthesized by incorporating titanium diboride (TiB2) particles into pure aluminum melt adopting liquid state processing route. AMCs containing 3, 6, 9, 12 and 15wt.% of TiB2 were obtained by varying the reinforcement content. Metallographic and tribological studies were conducted on the as-cast AMCs. Microstructural observation shows a homogenous distribution of TiB2 particles into the aluminum matrix. A pin-on-disc tribometer was used to evaluate the dry sliding behavior of the AMC under varying load and speed at a constant sliding distance. The obtained results show an improvement in the wear behavior of AMC in contrast to unreinforced aluminum. The addition of TiB2 plays an important role in enhancing the tribological properties of AMCs. The details presented in the current work encourage researchers to shift concentration from conventional metals and alloys to AMCs which offer superior wear properties.


Asiatrib-2018, pp. 336-337