Investigating the Tribological Behaviour of the Chrysophyllum Seed Oil on AISI52100/AISI8620 Contact

The tribological behavior of African seed oil (ASO), also known as Chrysophyllum, on steel/steel contacting surfaces was examined in this work. The two main disadvantages of mineral oil, a common lubricant due to its well-established qualities, are its poor lubricity and non-biodegradability, which pose a significant environmental risk. Therefore, there is a pressing need for an eco-friendly lubricant, and plant-based oils like vegetable seed oil might be used as a substitute. Thus, this study offers a thorough method for figuring out the chemistry of the vegetable oils when adsorbed on steel-contacting surfaces in addition to their physicochemical and tribological reaction. The vegetable oils used in this study were modified from African seed oil (Chrysophyllum). A hard steel ball with a 6.0 mm diameter reciprocated a standard load and a 1 mm stroke length over 506 s at a frequency of 10 Hz using a tribometer 6.1.17 version with a ball-on-disc configuration. The moderate 2N to 20N lubricated state was found to have a coefficient of friction between 0.102 and 0.125 and a wear rate between 0.02012 mm3/Nm and 0.07001 mm3/Nm. The African seed oil did not function as well as the mineral oil under moderate loading conditions. However, at higher loading circumstances (120N to 300N), the wear rate decreased from 0.28642 mm3/Nm to 0.09012 mm3/Nm, and the friction coefficient decreased from 0.16 to 0.054, indicating a significant drop in wear and friction that was unique to African seed oil. Positive results from every test indicated that the research's goal had been accomplished. This study demonstrated that the African seed oil has some lubricating abilities