Tribological Behavior of Metal Matrix Composite Using Stir Casting Method

A standout amongst other procedure for enhancing mechanical properties is the Friction stir processing (FSP) which is such a niece process system utilized for refinement of micro structure, generation of surface composite and improve the mechanical characteristics. In this work friction stir process was used to modify the mechanical properties using Sic as particulate reinforcement on the plate of AA6063 which result into a formation of complete surface structural composite. Sic with mesh size 400 was utilized as reinforcement particulate in FSP. For this purpose, two main parameters were selected i.e. tool revolution per minute of 1000, processing speed of 30 mm/min, and 10 KN of axial load. For achieving friction stir processing HSS tool was made with circular threaded pin having diameter of shoulder is 18 mm, length of pin is 5.8 mm and diameter of pin is 6 mm . Modified VM" Vertical milling machine "was used for friction stir processing with different percentage of Sic into the groove the capacity of the machine is 7.5 hp and speed range is about 300-3000 rpm. The surface compositesare created bytaking the percentage as respectively (Al/0.5 %Sic, Al/1 Vol.% Sic and Al/1.5 Vol.%(Sic). The modification in the micro structure like grain size, compactness of Sic particulate and wetness ofSicinto the parent metal was observed by using OM" DE winter make inverted microscope and scanned electron microscopy (FLEX SEM 1000 VP-SEM). The micro hardness profile along the transverse direction of the FSPed specimen was analyzed by BLUE STAR make Vickers micro harness tester.