Experimental investigation on mechanical, wear and corrosive properties of Aa6061-Tib2 in-situ composites produced by K2tif6- Kbf4 reaction system at optimum holding time.

Aluminium metal matrix composites with TiB2 ceramic reinforcements are extensively used in air vehicles, automobile, under sea applications due to their low weight to strength ratio, better corrosive properties, excellent wear resistant properties. In-situ composites are manufactured under flux assisted synthesis is cheapest, easy to fabricate and uniform distribution of ceramic particles. AA6061 is chemically react with halide salts like K2TiF6 and KBF4 to form TiB2 in aluminium matrix, because of exothermic reaction fine particles of TiB2 phases are formed at a optimum holding time (18min) of molten composite. Composite is prepared with different weight fractions like 0%,2.5%,5%,7.5% TiB2 in aluminium matrix. The TiB2 reinforcement and distribution are examined using SEM, XRD, EDAX analysis. Mechanical, Wear properties are studied and analyzed at different reinforcements of TiB2 Particulates, as increasing TiB2 content improves ultimate tensile strength, hardness, and wear resistance with decreasing ductility. [ABSTRACT FROM AUTHOR]