Effect of Coconut Shell Ash and Cow Dung Ash on Mechanical Properties of Al Metal Matrix Composites. Properties

Effect of Coconut Shell Ash and Cow Dung Ash on Mechanical Properties of Al Metal Matrix Composites. Properties

Vidhya B¹, Jayasheel I Harti², S. V. Prakash³

1 Research Scholar student ,East Point College of Engineering and Technology, Bangalore

2 Assistant Professor, East Point College of Engineering and Technology, Bangalore

3 Professor and Head of the Department, East Point College of Engineering and Technology, Bangalore

Abstract –Hybrid composites have superior tribo-mechanical properties compared to a single reinforced Al-MMC. Hybrid composite with micron synthetic ceramics and Agro/industrial waste particle reinforcement provided improved mechanical properties. Hybrid composite was more durable against wear and corrosion. The stir casting process has fewer defects like formation of agglomeration and non-homogeneous distribution of elements inside the matrix besides, the simplicity in composite manufacturing makes it as a mostly appropriate method for the fabrication of composite materials.The use of Agri Industrial waste particles as a reinforcement will improve the machinability, increase the hardness and strength of the composite, and improve wear and corrosion resistance. The AMMC finds applications in industries, automation and space research. Aluminum based metal matrix composites improves UTS, hardness, YS and further good percentage of reduction in density and percentage of elongation with the upsurge in the weight percentage of reinforcement particulate. The composites are used in automobile sectors especially in transportation due to low fuel consumption, less emission and low noise pollution which ultimately controls the environmental pollution.The specific modulus and specific strength of Aluminium alloys could be considerably enhanced by developing composites based on these alloys. The particle-reinforced Aluminium based metal matrix composites are of interest due to their ease of fabrication, lower costs and isotropic properties. In the present work The Al4008-CSA & CDA Composites is fabricated by using Bottom pouring stir casting techniques with weight % of 0, 4, 8&12 and 4 wt. % of magnesium is added in order to increase the wettability of the composites and Microstructure and Mechanical properties like Hardness and Tensile Properties are evaluated according to ASTM Standards.

Keywords –Al4008, CSA & CDA Particles, Hardness, Ultimate Tensile Strength, Yield Strength, Elongation.