Material Selection for Preparation of Aluminium Hybrid Mmcs

Abstract

Aluminium Hybrid Metal Matrix Composites play a decisive role in an assortment of engineering applications such as aerospace, automotive, marine, and military, space and infrastructural industries with their superior mechanical and physical properties. In Aluminium Hybrid Metal Matrix Composites the matrix materials are embedded the reinforcement materials, thus the matrix material plays a major role along with reinforcement material in order to achieve the enhanced properties. Therefore, the selection of optimum matrix materials is most important and vigorous task for engineering designers in the fabrication of Aluminium Hybrid Metal Matrix Composites (AHMMCs) to achieve better results. Analytical Hierarchy Process (AHP) is one of the most promising effective supporting tools of Multi-Criteria Decision Making technique for decision makers to judge or optimise the complex problems.This paper mainly focused on the selection of most suitable matrix material for Aluminium Hybrid Metal Matrix Composites by considering criteria such as Tensile Strength, Hardness, Melting point, Density and Cost of available aluminium alloys of 5XXX and 7XXX series in the market using Analytical Hierarchy Process (AHP). In this Analytical Hierarchy Process, the pairwise comparisons have been carried out by considering the expert judgements using Saaty's scale for all criteria which were identified to determine the suitable matrix material. From AHP, it is found that AA5083 and AA7075 are the best matrix materials for achieving better properties of Aluminium Hybrid Metal Matrix Composites.