"Experimental Analysis of Aluminium Alloy Metal Matrix Composite With Tungsten Carbide by in-Situ Method Using Sem "

Abstract

Aluminium matrix composites have more research focus due to its outstanding properties of specific strength, superior wear resistance and low thermal expansion. The main objective of this research is to estimate the effect of friction stir processing on microstructure and properties of aluminium alloy with tungsten carbide metal matrix insitu composite by low-cost stir casting technique. Friction stir processing is used to modify the cast microstructure of aluminium alloy 2024 with tungsten carbide metal matrix composite. The fabricated composite specimens were subjected to a series of mechanical and microstructural analysis. The observed results were compared with the results of base alloy material. Scanning electron microscope, optical microscopy and micro hardness test were carried out to analyze the microstructure and the dispersion of the reinforced particles in the composite alloy specimens. From the results it was found that, the mechanical properties like hardness value increases due to surface modification when compared with the base aluminium alloy.