Fabrication, characterization and regression modelling of aluminium matrix hybrid composites

Abstract

Aluminium based hybrid composites are most commonly active in aerospace and auto applications because of their extraordinary and noteworthy mechanical and thermal characteristics. However, the processing of these composites with ceramic and metal filers is a challenging task with unvarying reinforcement distribution and improved interfacial bonding. So, this paper is mainly concentrated to develop and study the effect of alumina and metal fillers in Al base. Al hybrid composites are processed by reinforcing identical fractions of alumina and metal fillers. Stir casting is employed for the processing of the same hybrid composites. Four samples were developed by varying the various processing constraints like stirring rate and duration and reinforcement content. The built samples were tested for hardness, wear rate and density. The dispersals of fillers in the matrix phase were characterized using SEM analysis. Taguchi analysis was employed to analyse the effect of several dispensation constraints on the production responses. Regression modelling is also employed for the prediction study of responses.