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TRIBOLOGICAL BEHAVIOR OF AL-MG ALLOY REINFORCED WITH MICRO TITANIUM AND BORON CARBIDE PARTICULATE HYBRID METAL MATRIX COMPOSITES
Madegowda B., Shivalinga S.*, Dr. Vidyasagar. H. N. Dr. H. K. Shivanand, Bylappa B. K. and Janardhan C. V.
In the present investigation on tribological behavior of Al-Mg alloy reinforced with micro Ti and B4C particulates hybrid metal matrix. The composites were fabricated by using the stir casting technics by varying weight percentage of reinforcements i.e. [for sample 1 (A-Mg 100%), sample 2 (Al-Mg 94%+Ti 5%+B4C 1%), sample 3 (Al-Mg 93% + Ti 5%+B4C 2%), Sample 4 (Al-Mg 92%+Ti 5%+B4C 3%)] the dry sliding wear test carried out of pin on disc wear testing machine. Aluminium matrix composites are widely used in Engineering applications due to their good physical and mechanical properties such as high strength to weight ratio, good ductility, corrosion resistance, availability and low cost. The application of aluminium alloys have been restricted because of soft and for their poor wear resistance. This problem is overcome by addition of reinforcements into the metallic matrix. After reinforcement metal matrix composites have the enhanced properties such as stiffness, specific strength, wear, creep and fatigue properties compared to unreinforced alloys. Aluminium matrix composites are used in engineering applications such as aircraft, aerospace, automobiles and various other fields. In the automobile sector aluminium based metal matrix composites are used for making of automotive Engine components such as vehicles bodies, cylinder blocks, pistons, pistons rings, cylinder blocks, cylinder liners and brake drum. Wear is one of the serious problems which need further scrupulous solutions.[Full Text Article]