INVESTIGATION OF TRIBOLOGICAL BEHAVIOUR OF Al 4032 ALLOY REINFORCED WITH SEASHELL POWDER UNDER BIOFRIENDLY DIESEL LUBRICATION

ABSTRACT: The study investigates the tribological performance of Al4032 alloy under varying conditions using biodiesel as a base lubricant and laboratory synthesized seashell powder as additives. It is necessary to improve the wear resistance of the Al4032 alloy as it finds its application in various fields of engineering. The wear performance can be improved by adding sustainable lubricants which are biofriendly, reliable and long lasting. Wear behaviour was evaluated at different temperatures (30°C, 45°C, and 60°C) through pin-on-disc tests, with wear rate as the primary response. The Taguchi method was employed to optimize experimental parameters (load, temperature, and duration) and minimize wear. Results demonstrate a significant reduction in wear rate with biodiesel lubrication (63.45%) compared to dry running conditions. The addition of seashell powder to the biodiesel further enhanced wear resistance, achieving a remarkable 93.40% reduction. Analysis revealed that load as the most critical factor influencing wear (74-82%), followed by temperature (4-22%). SEM analysis confirmed wear mechanisms such as abrasive wear in lubricated conditions and adhesive wear in dry conditions. This research underscores the importance of understanding wear behaviour in Al4032 alloy, particularly in the context of developing sustainable and high-performance lubricants. In this context, seashell powder added with Biofriendly diesel seems to be promising lubricant to reduce the wear of Al4042 alloy and enhance its operational efficiency and durability.