Bearing Performance of Marble Dust Reinforced AA7075 Alloy Composite

Aluminium alloys, due to their light weight, stiffness, anti-corrosion, and workability properties, find application in the fabrication of a wide range of components used in industries and daily life. This research work investigates the design, development, and fabrication of AA7075-Marble dust (0-6 wt.% @ 2wt.%) alloy composites using the stir casting method. Subsequently, samples are characterized for their physical (density & voids content), mechanical (hardness, compressive strength, impact strength, and flexural strength), and dry sliding wear (on a pin on disc) performance. It has been observed that voids content increases with reinforcement content. The hardness, impact, and flexural strength of 6 wt.% reinforcement was the highest while the 2 wt.% reinforcement showed the highest compressive strength. The specific wear rate decreases with the reinforcement content and sliding velocity, whereas it increases with normal load and sliding distance.

Autorentext

Dr Ashiwani Kumar is an Assistant Professor in the Mechanical Engineering Department,Feroze Gandhi Institute of Engineering and Technology, Raebareli and he has been published more than 50 Research articles in refereed journals and 50 conferences. He has been published 10 books and 10 book chapters and has been granted three patents.