Investigation of tribological performance of PAI and PAI/graphite/PTFE composites under different mediums and working conditions

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dc.contributor.authorUnal, Huseyin
dc.contributor.authorYetgin, Salih Hakan
dc.contributor.authorYilmaz, Yasin
dc.contributor.authorFindik, Fehim
dc.date.accessioned2025-03-17T12:25:42Z
dc.date.available2025-03-17T12:25:42Z
dc.date.issued2025
dc.departmentTarsus Üniversitesi
dc.description.abstractPurposeThis study aims to investigate the tribological performance of neat polyamide-imide (PAI) and PAI composite (PAI + 12% graphite + 3% polytetrafluoroethylene [PTFE]) under varying mediums and conditions, including dry sliding, distilled water and seawater lubrication, to determine their suitability for high-stress applications.Design/methodology/approachTribological tests were conducted using a pin-on-disc setup with AISI 316 L stainless steel (SS) as counterface. Experiments were carried out under loads of 150 and 300 N and sliding speeds of 1.5 and 3.0 m/s. Values of temperatures, friction coefficients and wear rates were recorded to analyze the effect of fillers and lubrication mediums.FindingsThe PAI composite outperformed the neat PAI under all conditions, showing significant reductions in friction coefficients and wear rates. Seawater lubrication yielded the best results, achieving friction coefficients of 0.05 and 0.01 and specific wear rates of 18.10-16 m(2)/N and 1.10 -15 m(2)/N, for neat PAI and PAI composite, respectively. Graphite and PTFE fillers enhanced lubrication, reduced surface temperatures and mitigated abrasive and adhesive wear mechanisms. Superior cooling and lubrication effects of the seawater contributed to these improvements.Originality/valuePrevious studies mainly focused on dry sliding and distilled water lubrication for the PAI and its composites, with no research on the seawater conditions. This study compares the tribological behaviors of the neat PAI and PAI composite against AISI 316 L SS under dry sliding, distilled water and seawater lubrication.Peer reviewThe peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2024-0302/
dc.identifier.doi10.1108/ILT-08-2024-0302
dc.identifier.issn0036-8792
dc.identifier.issn1758-5775
dc.identifier.scopus2-s2.0-85214826875
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1108/ILT-08-2024-0302
dc.identifier.urihttps://hdl.handle.net/20.500.13099/1808
dc.identifier.wosWOS:001395274800001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherEmerald Group Publishing Ltd
dc.relation.ispartofIndustrial Lubrication and Tribology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectTribology
dc.subjectDry sliding
dc.subjectDistilled water lubrication
dc.subjectNeat PAI
dc.subjectPAI composite
dc.subjectSea water lubrication
dc.titleInvestigation of tribological performance of PAI and PAI/graphite/PTFE composites under different mediums and working conditions
dc.typeArticle

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