Abstract
This research investigates the tribological behavior of gray cast iron against EN31 steel under lubricated conditions. The most typical lubricated sliding phenomena are the reduction of wear on both the sliding surfaces and any one of the critical surfaces. Static and hydrodynamic wear can be reduced based on fluid properties or the accessibility of fluid between the surfaces. The oil’s viscosity or content of the hydrocarbon and additives present in the oil plays a major role in controlling the wear of reciprocating surfaces. Therefore, this research work focused on metal-to-metal contact wear under the influence of lubricating oil (40 pride oil). The Taguchi method was used to select the sliding parameter combinations. Lubricated sliding resulted in a relatively reduced order of friction coefficient, attributable to better load distribution due to the formation of the lubricant film.
Highlights
Gray cast iron (GCI), used in the manufacturing of industrial components, is more accessible to machines and requires less lubricant than other cast irons [1]
This study deals with the sliding wear behavior of GCI-steel (EN31) contact pair under lubricated conditions over a range of load, sliding speed, and sliding distance
The author has referred to the formation of graphite flakes under low loading conditions during dry sliding which reveals excellent wear resistance of GCI [10]
Summary
Gray cast iron (GCI), used in the manufacturing of industrial components, is more accessible to machines and requires less lubricant than other cast irons [1]. This study deals with the sliding wear behavior of GCI-steel (EN31) contact pair under lubricated conditions over a range of load, sliding speed, and sliding distance. It was found that the cast iron wear rate increased with sliding speed and applied pressure. The author has referred to the formation of graphite flakes under low loading conditions during dry sliding which reveals excellent wear resistance of GCI [10]. It was found that the wear rate of cast iron increased with the sliding speed and pressure. Gray cast iron type consists of predominantly pearlitic/ferrite matrix or both with graphite flakes Even though it has good properties, it must withstand the application environments such as dry and lubricated sliding, which has exposed positive and negative wear. This research describes the lubricated environment conditions under the contact pair of GCI-EN31 steel
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