Microstructural, mechanical and wear characteristics of aluminum matrix composites fabricated by friction stir processing

Aluminum matrix composites are widely used in aerospace, automotive industry and defense sector owing to its excellent weight-to-strength ratio. Friction stir processing has emerged as an excellent technique to produce particle reinforced as well as fiber reinforced aluminum matrix composites. This article is a state of the art of aluminum matrix composite fabrication by friction stir processing route. The fabrication procedure has been discussed with carefully mentioning the parameters associated with the process. Microstructures and consequent mechanical properties of the composites have been evaluated. Particular attention is given on the microstructural modification and strengthening mechanism. Also the wear and corrosion behavior of the composites has been discussed thoroughly. Finally, the article has been concluded with some suggestions toward future work.