Tribological Characteristics of GCI-EN31 Steel Surface Contact with Dry Sliding Condition

Abstract

Grey cast iron (GCI) and steel contact surface application is an inevitable component and provides good wear resistance in several applications, not only in automobiles. Grey cast iron consists of a predominantly pearlitic/ferrite matrix or both with graphite flakes. The majority of previous research works were based on three different types of wear regimes. The wear regimes enumerate the wear track morphology, wear rate, and COF of the respective application. In this research work, dry sliding wear properties of GCI and EN31 pins were examined with different sliding parameters using pin on disc wear test. The weight loss, coefficient of frictions, and surface morphology were considered for experimental analysis. Due to the transfer of wear debris from the GCI disc, the counter steel pin surface experienced a progressive reduction in wear with increasing speed and load. With 30 N and 45 N contact loads and sliding speeds up to 1 m/sec, the GCI shows marginally positive wear. The surface textures were analyzed with the help of SEM and a surface roughness tester.