Laboratory evaluation of a nanostructured lubricating grease for tram runflat tires
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Emerald Publishing
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Purpose: This paper aims to develop a stable gel-type lubricant emulating commercial conditions. This encompassed rheological and tribological assessments, alongside field trials on the Medellín tram system. Design/methodology/approach: The gel-type lubricant with graphite and aluminum powder is synthesized. Rheological tests, viscosity measurements and linear viscoelastic regime assessments are conducted. Subsequently, tribological analyses encompassing four-ball and twin disc methods are executed. Finally, real-world testing is performed on the Medellín tram system. Findings: An achieved lubricant met the stipulated criteria, yielding innovative insights into the interaction of graphite and aluminum powder additives under varying tests. Originality/value: Novel findings are unveiled regarding the interaction of graphite and aluminum powder additives in tribological, rheological and real-world trials. In addition, the wear behavior of polymers is observed, along with the potential utilization of such additives in tramway systems. © 2024, Emerald Publishing Limited.
Palabras clave
PEG-based grease, Polymers contact, SAOS, Twin-disc test, Wear mechanism, Additives, Aluminum, Graphite, Lubricants, Tribology, Wear of materials, Aluminium powder, Gel-type, Graphite powder, Laboratory evaluation, Nano-structured, PEG-based grease, Polymer contact, SAOS, Twin-disk tests, Wear mechanisms, Viscosity measurement