? Evaluation of Toughness Properties of Aluminium based Metal Matrix Hybrid Composites Joined by Solid-State Welding

Abstract

Challenges towards the fabrication of composite materials and joining have some issues related to microstructural behavior. During fabrication, the distribution of minor ingredients in the matrix phase and wettability attains great focus to achieve sound cast products, but real challenge arises during joining of composites. Specially aluminum-based metal matrix has low melting temperature pose sevire problems including heat affected zone, thermal and work strain. This paper focused on to develop, sound cast plates with ingredients of aluminum 6061 alloy, E-glass fiber and SiC particles blended with ASTM standard proposition in traditional stir casting process followed by joining of hybrid composite plates by one of versatile solid-state welding technique called friction stir welding. The welded hybrid composite plates were subjected to impact loading using charpy test and evaluate the toughness characteristics of welded plates and tabulated the results.