Abrasive wear behavior of Ni–P coated Si3N4 reinforced Al6061 composites

摘要: Abstract Ni–P coated Si3N4 reinforced Al6061 composites were fabricated by vortex method. Percentage of reinforcement was varied from 6 wt.% to 10 wt.% in steps 2. Cast matrix alloy and developed hot forged at a temperature 500 °C using 300T hydraulic hammer. Both as cast its subjected microstructure studies, grain size analysis, microhardness abrasive wear tests. Microstructure studies reveal uniform distribution silicon nitride particles with good bond between both condition. It is observed that, increased content do result significant refinement. However, when compared exhibits higher extent exhibit improved resistance the unreinforced alloys under identical test conditions. Abraded worn surfaces examined scanning electron microscopy (SEM) for possible mechanisms. Increased particle load has resulted larger grooving leading loss composites.