Investigations on mechanical properties of friction stir processed, nano-reinforced, AA6061 composites

The Metal matrix composites (MMCs) are widely used in many industries. With the development of nano technology, particles size down to nano level enhances the properties of MMCs. The MMCs reinforced with nano size particulate are termed as Metal matrix nano composites (MMNCs).In this paper; various properties of the Aluminum AA6061 MMNCs are investigated. By adding nano ceramic SiC particles in varying weight percentages, aluminum metal matrix nano composites are fabricated and Friction stir processed (FSP). Ultrasonic waves are used to disperse the nano particles. Experimental results show uniform distribution and good dispersion of the nano particles within the aluminum matrix, with very few agglomerates of nano powders. The tensile properties and hardness values of the FSP zone are increased significantly compared to the nano reinforced metal. © Research India Publications.