An Investigation of Deep Wear Status Assessment of AISI 329 Material Under Green Nanofluid Conditions
Authors :- E Şirin, E Uysal, N Khanna, Ş Şirin
Publication :- Arabian Journal for Science and Engineering, 2024
One of the main goals in sustainability is to reduce the environmental effects of boundary and mixed lubrication on rubbing surfaces. Petroleum-based fluids are at the center of environmental concerns and have attracted the attention of researchers in recent years. Vegetable-based oils are a good alternative to petroleum-based oils, and their tribological performance is a matter of curiosity. For the last 10 years, nanoparticle additives have been used to increase the tribological effect of plant-based oils. Green tribology is an integrated concept that includes the terms nanotribology and biotribology. In this study, nanofluid was prepared by adding SiO2 and TiO2 nanoparticles into the vegetable-based oil to examine green tribology performance. Friction/wear tests were applied to AISI 329 stainless steel material with a ball-on-disc tester. In the green tribology performance evaluation, pH, thermal conductivity, surface roughness, topography, microhardness deviations, coefficient of friction (CoF), track width, SEM analysis, and power consumption results were taken into consideration. As a result of the tests, the SiO2 nanofluid condition provided a reduction of 40.76%, 13.69%, 66.77%, 5.98% in surface roughness, microhardness, CoF, track width, and power consumption results, respectively, compared to the dry condition. In other words, the SiO2 green nanofluid condition exhibited superior performance compared to other conditions in all performance criteria.