Studies on aluminium matrix based functionally graded materials reinforced with alumina particle and their mechanical tribological and thermal properties

Abstract

In this study a vertical centrifugal casting machine has used for the fabrication of a functionally graded material which has prepared by a non commercial pure aluminium with Alumina reinforcement particles were produced at different speeds rang 800 rpm and 1200 rpm The reinforcement was varied with different volume percentage Establish wear test outcomes have been used the weight loss method across the inward to outward of the cast ring which depends on the fabrication parameters sliding distance velocity the loading conditions also exhibited in the Scanning Electron Microscopy analysis and micro hardness in that region newlineThe mechanical characteristics like tensile strength and fracture toughness of aluminium based functionally graded material were studied in the present work and correlated with the variation in the quantity of reinforcing particles Aluminium based FGM with various compositions of reinforcing particles Alumina were produced in the centrifugal casting set up rotating at a constant speed newlineIn view of this it is felt that a modal which is capable of estimating thermal stress distribution inside the FGM should also be investigated The thermal stresses as estimated through the models described above have also been compared It has been established that in the case of graded material with layered composite the thermal stresses are not increasing steeply thus minimizing the chances of delimitation of layer of ceramic from the metal layer newline newline newline