Title: Experimental investigation of tribological property enrichment of mineral oil with addition of nanoparticles additives

Authors: Amrut Sahebrao Aher; Vijay Kumar Pandey

Addresses: Department of Mechanical Engineering, Vivekananda Global University, Jaipur, 302012, India; Department of Mechanical Engineering, Dr. Vithalrao Vikhe Patil COE Ahmednagar, 414111, India ' Department of Mechanical Engineering, Vivekananda Global University, Jaipur, 302012, India

Abstract: In the present paper, tribological investigations were studied on mineral oil containing zinc dialkyldithiophosphate (ZDDP), molybdenum disulphide (MoS₂), and tungsten disulphide (WS₂) particles with ten different combinations. To achieve homogeneous mixing, it is stirred magnetically over a magnetic stirrer maintaining constant temperature. The four-ball wear configuration was used to calculate the wear scar characteristics and mineral oil's coefficient of friction. It is observed that the lowest coefficient of friction is 0.04055, which is a combination type H. Also, observations showed that for the same combination, the minimum frictional torque is 0.073. The findings revealed that the H combination exhibited superior results in kinematic viscosity at both 40°C and 100°C, viscosity index, flash point, fire point, and pour point. Additionally, the coefficient of friction and wear scar diameter for the H combination were notably lower compared to the reference mineral oil (SAE 15W40).

Keywords: additives; anti-wear; mineral oil; viscosity; four ball oil tester.

DOI: 10.1504/IJSURFSE.2024.142237

International Journal of Surface Science and Engineering, 2024 Vol.18 No.4, pp.349 - 368

Received: 06 Feb 2024
Accepted: 28 Mar 2024
Published online: 15 Oct 2024 *

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