20.500.12556/RUL-169436 Tribological properties of steel sheet with epoxy-based enamel coating under dry and lubricated conditions for stamping applications In the automotive industry, steel sheets used for stamping into laminations are often coated with various enamel coatings to enhance product performance. However, the impact of these coatings on the tribological behavior of the steel sheets has not been given sufficient attention. This research evaluates the tribological performance of steel sheet with epoxy-based enamel coating in contact with a WC-Co ball under dry and lubricated conditions. The lubricated conditions included the use of water, two low-viscosity (LV) oils (paraffinic LV and naphthenic LV) and two high-viscosity (HV) oils (paraffinic HV and naphthenic HV). The Raman spectra of the wear track show that the epoxy-based enamel coating remains in contact during the initial testing cycles for all the tested conditions, keeping the coefficient of friction low and resulting in only a small variation in the coefficient of friction between the dry and lubricated conditions. Even though the chosen lubricants slightly decrease the hardness of the epoxy-based enamel coating, they (with the exception of the high-viscosity paraffinic oil) prolong the presence of the enamel coating in the contact compared to dry conditions. After the coating is removed, the difference in the coefficient of friction between the different lubricants and the dry contact becomes significant, being much lower under lubricated conditions, especially with HV oils. tribology stamping epoxy-based enamel coating paraffinic oil napthenic oil water tribologija štancanje premazi na osnovi epoksi smole parafinsko olje naftensko olje voda true false true Angleški jezik Slovenski jezik Članek v reviji 2025-05-28 13:25:58 2025-05-28 13:26:09 2025-05-30 03:41:23 0000-00-00 00:00:00 2025 0 0 Str. 7666-7675 Vol. 36 May-Jun. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.89:531.43 2238-7854 10.1016/j.jmrt.2025.04.306 237522179 Coga_..._Tribological_properties.pdf Coga_..._Tribological_properties.pdf 1 C7C3B4E5FE2E5681E8E2BAA5F0F80DBA 756059ada88ac8dd9e4d65a6aab05a3f02fbe08f53fdaa85bc246412066342d7 a8139e8c-3bb5-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=210787 https://www.sciencedirect.com/science/article/pii/S2238785425011275 1 41c705e9-3bb5-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=210786 Fakulteta za strojništvo 0 0 0