Characterization of Aluminium alloy Lm6 With ...

Characterization of Aluminium alloy Lm6 With B4c and Fly Ash Reinforced Hybrid Metal Matrix Composites

Author Name : R. Satheesh, G. Citybabu, X. Jerish Amul

ABSTRACT

The hybrid metal matrix composites play a significant role in various field of aircraft, marine, automobile industrial components etc., where the improvement necessary in both mechanical and chemical properties of composites. This study is dealing with developing as new composite material such as aluminium alloy (LM6), fly ash and boron carbide-based hybrid metal matrix composites. Aluminium alloy (LM6) is the base metal having properties of less weight, medium strength and excellent castability. Fly ash is a primary reinforcement due to its low cost and locally inexpensive material. Boron carbide (B4C) used as a secondary reinforcement which an excellent hardness. The hybrid metal matrix composites fabricated by three different combinations of fly Ash (8,10,12 Wt%) with constant Wt% of Boron Carbide (3Wt%) using the stir casting method. The fabricated samples of hybrid composites used to find the mechanical properties and microstructure analysis. The optimum results observed in an aluminium alloy (LM6) with 12% of fly Ash and 3% of Boron carbide (B4C) reinforced matrix from impact strength. The Fly Ash and Boron Carbide (B4C) particles in a matrix material are analyzed by Scanning Electron Microscope (SEM). Energy Dispersive X-Ray analysis (EDX) used to observe the presents of reinforced particles in Hybrid metal matrix composite form an optimum result of a specimen.

Keywords: Stir casting, Hybrid metal matrix composites, Mechanical properties, SEM, EDX.