Tribological and electric contact resistance properties of pulsed plasma duplex treatments on a low alloy steel

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dc.contributor.authorMurua, Joseba
dc.contributor.authorIbañez, Iñigo
dc.contributor.authorDianova, Anastasia
dc.contributor.authorDomínguez-Meister, Santiago
dc.contributor.authorLarrañaga, Oihane
dc.contributor.authorLarrañaga, Aitor
dc.contributor.authorBraceras, Iñigo
dc.contributor.institutionINGENIERÍA DE SUPERFICIES
dc.date.accessioned2024-07-24T12:00:03Z
dc.date.available2024-07-24T12:00:03Z
dc.date.issued2023-02-15
dc.descriptionPublisher Copyright: © 2022 Elsevier B.V.
dc.description.abstractLow friction low cost tribology systems involve most often use of lubricants, which must be periodically refurbished and often present environmental issues. Furthermore, use of liquid lubricants is a non-starter in many critical applications. In this work, the performance of single process duplex tribo-conditioning treatments is explored. The treatments are based on pulsed low-pressure plasma treatments, where nitriding processes are complemented with the deposition of carbonaceous solid lubricating top layers. The duplex treatments are carried out sequentially in the same chamber. The study comprised, among others, exploring the use of different residual gas mixes and pulse frequencies. Roughened blasted 42CrMo4 low alloy steel (AISI 4140 equivalent) was used as substrate. Resulting surface properties were studied with nano-indentation, profilometry and contact angle measurements. Besides, tribological studies were carried out against 100Cr6 steel at different humidities. The evolution of the coefficient of friction and the electrical contact resistance (ECR) was assessed for each test, as well as the wear rates. Results showed tribological outcomes heavily dependent of ambient conditions, and ECR of the wear track surface condition, i.e. the amount of remaining coated surfaces. The use of pulsed plasmas generated comparatively softer, smoother and more hydrophobic surfaces.en
dc.description.sponsorshipThis work was supported by the Hazitek ZL-2021/00142 and Elkartek Frontiers grants from the Department for Economic Development, Sustainability and Environment of the Basque Government .
dc.description.statusPeer reviewed
dc.identifier.citationMurua , J , Ibañez , I , Dianova , A , Domínguez-Meister , S , Larrañaga , O , Larrañaga , A & Braceras , I 2023 , ' Tribological and electric contact resistance properties of pulsed plasma duplex treatments on a low alloy steel ' , Surface and Coatings Technology , vol. 454 , 129155 . https://doi.org/10.1016/j.surfcoat.2022.129155
dc.identifier.doi10.1016/j.surfcoat.2022.129155
dc.identifier.issn0257-8972
dc.identifier.urihttps://hdl.handle.net/11556/3007
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85144615310&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofSurface and Coatings Technology
dc.relation.projectIDDepartment for Economic Development
dc.relation.projectIDEusko Jaurlaritza
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsDuplex
dc.subject.keywordsElectrical contact resistance
dc.subject.keywordsFriction
dc.subject.keywordsNitriding
dc.subject.keywordsPulsed plasma
dc.subject.keywordsGeneral Chemistry
dc.subject.keywordsCondensed Matter Physics
dc.subject.keywordsSurfaces and Interfaces
dc.subject.keywordsSurfaces, Coatings and Films
dc.subject.keywordsMaterials Chemistry
dc.titleTribological and electric contact resistance properties of pulsed plasma duplex treatments on a low alloy steelen
dc.typejournal article
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