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Influence of water on the tribological properties of zinc dialkyl-dithiophosphate and over-based calcium sulfonate additives in wet clutch contacts
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.ORCID-id: 0000-0002-8972-2944
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.ORCID-id: 0000-0001-9794-8305
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.ORCID-id: 0000-0003-3157-4632
Vise andre og tillknytning
2015 (engelsk)Inngår i: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 87, s. 113-120Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Usually the wet clutch lubricant properties vary with different formulations of base oil types and additives. The aim of this paper was to evaluate the effect of water on the performance of additives in ATF. Simplified lubricants, ZDDP and over-based Ca-sulfonates detergent additives in an API Group I mineral base oil, were employed to compare with the commercial fully-formulated automatic transmission fluid (DEXRON®VI) during water-contamination. A full-scale wet clutch test rig was used to evaluate the frictional response due to water contamination of the lubricants. Fourier Transform Infrared Spectroscopy was utilized to evaluate the variation in the solubility of these polar organic additives in the water phase and Karl-Fischer titration was utilized to evaluate the post-test water content for different formulations.

sted, utgiver, år, opplag, sider
2015. Vol. 87, s. 113-120
HSV kategori
Forskningsprogram
Maskinelement; Kemisk teknologi
Identifikatorer
URN: urn:nbn:se:ltu:diva-13289DOI: 10.1016/j.triboint.2015.02.006ISI: 000353730500013Scopus ID: 2-s2.0-84924913600Lokal ID: c7d39d15-0ec2-4a97-b3fa-72d8755bdd6aOAI: oai:DiVA.org:ltu-13289DiVA, id: diva2:986241
Merknad
Validerad; 2015; Nivå 2; 20150213 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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Fatima, NowshirMinami, IchiroHolmgren, AllanMarklund, PärBerglund, KimLarsson, Roland

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