Experimental Study of Tribological Behavior of Casted Aluminium-Bronze

Abstract

This study aimed to investigate the effects of sliding speed and normal pressure on the wear and friction behavior of the casted Aluminium bronze (Al-bronze) and mild steel. The experiments were performed at five different sliding speeds (3.01, 3.95, 4.52, 4.62, 4.72 m/s) and normal pressure (31, 62, 93, 124 and 156 kPa) values using a pin on disc tribometer. An L25 orthogonal array as per the Taguchi technique was used to analyze the specific wear rate (SWR) and coefficient of friction (COF). The wear mechanism was assessed using SEM study of the worn surface of the Al-bronze. It is concluded that sliding speed has the major influence on the specific wear rate and coefficient of friction at the interface of Al-bronze and mild steel. For the selected sliding speeds and normal pressure values, the Al-bronze material yields in less SWR at (3.95 m/s, 62 kPa) and minimum COF is obtained at values of (4.62 m/s, 124 kPa)