Tribological behavior of stir cast LM25/Flyash/SiC composite using Taguchi method

Abstract

Composites are in high demand in the industry right now because of their low weight, abrasion resistance, stiffness, and good strength. Composite materials are made up of a combination of two main or more materials that have physicochemical characteristics that differ from one another. In the manufacture of composite materials, a variety of processes are used; the stir casting approach is the simplest and least expensive. Aluminium matrix composites are formed when an aluminium alloy is combined with a reinforcement. The tribological characteristics of this aluminium matrix were developed to improve their performance. The samples were made using the stir casting method with castaluminium alloy (LM25) as the metal matrix, 10% SiC as the reinforcement material, and fly ash (03, 06, 09 percent by weight) as the reinforcing material. The current study examines the effects of sliding speed, applied stress, reinforcing wt. %, and sliding distance on wear. In this present study, dry sliding wear is considered. A pin on the disc machine was used to conduct the dry-typesliding wear test. Various mechanical testing like impact tests, tensile tests were carried out on the composite material. The Taguchi method was used to collect data in a controlled manner utilizing the design of experiment methodology. The wear behavior of aluminium composite was investigated using signal-to-noise ratio and multiple regression analysis. It is concluded that the best parameters for obtaining a minimal SWR are Sliding Speed 1.5 m/s, Sliding Distance 500 m, Load 45 N, and 3 percent reinforcement (S2, D1, L3, R1).