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This project aims to fabricate an in-situ composite shaft composed of aluminum and zirconium dibromide. Composites with volume portions of 3:5, 7:5, and 7:9 will be tested for toughness and wear characteristics. The ZrB2 particles that formed eventually coalesced into the tiniest of aluminum matrix granules. The majority of the ZrB2 particles were located close to the grain boundaries. In-situ ZrB2 particles enhanced microhardness and ultimate tensile strength. Various ways of reinforcement were identified. The use of in-situ liquid reaction to create aluminum matrix composites is a novel approach to eliminating flaws in ex-situ reinforced metal matrix composites. The most common approach is the creation of composites via in-situ bromide salt liquid metallurgy. Using Al-3%, 5%, and 7%Zr master alloys in Al6063 alloy, in-situ composites of Al6063-ZrB2 were fabricated for this research. Studies have been conducted on the microstructure and tensile properties of in-situ reinforced ZrB2 in Al6063 alloy. [ABSTRACT FROM AUTHOR]