Analysis of mechanical properties of Al-based metal matrix composite reinforced with ES and RHA

Abstract

Purpose Aluminium metal matrix composite (AMMC) is most popular in various industrial applications such as aerospace, automobile, marine, sports and many others. In common practice, silicon carbide, aluminum oxides, magnesium oxide, graphene and carbon nano tubes are the major reinforcing elements to prepare the AMMC. The purpose of this paper is to develop AMMCs reinforce with eggshell (ES) and rice husk ash (RHA). Design/methodology/approach Stir casting process is used for preparation of AMMC. From past few years, more emphasis is given to prepare the AMMCs using agro waste such as rice husk and/or ES as reinforcing materials. In this method, after the Al-matrix material is melted; it is stirred vigorously to form vortex at the surface of the melt, and the reinforcement material is then introduced at the side of the vortex. Stir casting process is a vortex and vigorous method to prepare the AMMCs. First, aluminum alloy (AA3105) is melted in the furnace when metal is in semisolid form. Reinforcement, i.e. ES and RHA are preheated at temperature 220°C and 260°C, respectively. Findings The result of AMMC shows that the tensile strength and hardness increased by using 22.41% and 45.5%, respectively, at 4.75 Wt.% each reinforcement, i.e. ES and RHA, and 1% Cr. The toughness and ductility of metal matrix composite (MMCs) have decreased up to 23.31% and 19.23% respectively by using 1% Cr, 4.75 wt. % ES and by 4.75 wt. % RHA of composite material. Originality/value In this work, Cr, waste ES and RHA have been used to develop green MMC to support the green revolution as promoted/suggested by United Nations, thus reducing the environmental pollution.

Preparation of Nanosize Bone Powder from Waste and Development of Al Composite through Squeeze Casting Process

“…The composite material's strain fields and wear resistance are enhanced because of the difference in coefficients of thermal expansion between the matrix and reinforcing materials. Yadav et al [29] created AMMCs using ES and RHA reinforcements. In the AMMC study, ES and RHA reinforcements at 4.75 and 1 wt% Cr increased tensile strength and hardness by 22.41% and 45.5%, respectively.…”

Effect of Casting Parameters on Tensile Strength of Chrome Containing Leather Waste Reinforced Aluminium Based Composite using RSM

“…There are, however, only a few researchers who have used collagen powder and alumina to make composites. Although composite has been made using collagen and alumina in previously published work [16][17][18] , some defects have been observed in the developed composite. In this article, firstly optimized the casting parameters were then composite was fabricated at optimum casting parameters to improve mechanical properties 19) .…”