Abstract
Al6061-TiB2 metal matrix composite was fabricated by liquid metallurgy route via in-situ reaction in Al6061 alloy, using the mixture of K2TiF6 and KBF4 halide salts. The developed composites were hot forged at a temperature of 500oC. Cast and forged matrix alloy and composites were subjected to microstructure studies, micro hardness tests and tensile tests. Results shows that both cast and forged shows uniform distribution of TiB2 particles in matrix alloy, forged composites shows more homogeneity compare to cast ones. Microhardness, ultimate tensile strength of Al6061-TiB2 composite is considerably higher when compared with unreinforced alloy in both cast and forged conditions.There is a decrease in ductility of the composite when compared with matrix alloy in both as cast and hot forged conditions.However, forged composites show an improved microhardness, ultimate tensile strength and ductility when compared with cast composites.
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