Abstract
In the present research work, experimental investigation on the development graphene (Gr) and silicon carbide (SiC) reinforced aluminum (Al-5086) hybrid surface composite using friction stir processing (FSP) technique has been presented. In the microstructure and mechanical properties (surface hardness and elastic-modulus) the influence of FSP process parameters, such as rotational speed, cross speed, and instrument geometry, was investigated. Using the nano-indentation technique and tensile-strength, mechanical properties such ashardnessand the elastic-modulus were determined. To order to ensure consistent delivery of reinforcement, the processing was carried out for three numbers of passes. It has been found that the geometry of FSP device pins has significantly affected the consistency characteristics of the hybrid composites. The grain size has decreased considerably from 22.42 to 8.17 μm. The aggregate has been decreased. In comparison, with square-shaped geometry pin geometry, the maximum degree of surface hardness (1.25 GPa) and elastic framework (95 GPa) of Al-Gr-SiC is obtained.
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