INVESTIGATION OF PHYSICAL AND MECHANICAL PROPERTIES OF HYBRID NICKEL POWDER AND SILICON CARBIDE REINFORCED ALUMINIUM ALLOY COMPOSITES

Vandana Yadav
Department of Mechanical Engineering, National Institute of Technical Teachers Training and Research, Chandigarh, India 160019 , IN

Dr. P. Sudhakar Rao
Department of Mechanical Engineering, National Institute of Technical Teachers Training and Research, Chandigarh, India 160019 , IN

Keywords: Stir casting; Nickel powder; void content; flexural strength; hardness; tensile strength

Abstract

The purpose of this paper to investigate the Physical and mechanical properties of Al 6061- T6- SiC–nickel powder hybrid composite. The composites sample are successfully prepared by stir casting method with different hybrid ratios of nickel powder (0,0.5, 1.0 and 1.5 wt. %) and SiC (fixed 2 wt. %). Mechanical test such as Density, void content hardness, tensile, flexural and impact test are performed on prepared sample. The results indicated that addition of filler content decrease density and increase in hardness, tensile strength and impact strength of composite sample while the flexural strength reduced marginally. The composite sample with combination of 1wt% of nickel powder and 2 wt. % of silicon carbide gives highest tensile strength. It was observed that Silicon carbide and nickel metal powder combination as reinforcements lead to a new composite material with unique properties

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