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dc.contributor.authorBraceras, Iñigo
dc.contributor.authorIbáñez, Iñigo
dc.contributor.authorDominguez-Meister, Santiago
dc.contributor.authorSánchez-García, Jose Angel
dc.contributor.authorBrizuela, Marta
dc.contributor.authorLarrañaga, Aitor
dc.contributor.authorGarmendia, Iñaki
dc.date.accessioned2018-06-14T14:10:27Z
dc.date.available2018-06-14T14:10:27Z
dc.date.issued2018-12
dc.identifier.citationBraceras, Iñigo, Iñigo Ibáñez, Santiago Dominguez-Meister, Jose Angel Sánchez-García, Marta Brizuela, Aitor Larrañaga, and Iñaki Garmendia. “Plasma Nitriding of the Inner Surface of Stainless Steel Tubes.” Surface and Coatings Technology 355 (December 2018): 116–122. doi:10.1016/j.surfcoat.2018.04.057.
dc.identifier.issn0257-8972en
dc.identifier.urihttp://hdl.handle.net/11556/579
dc.description.abstractStainless steels, especially the austenitic grades, present a good corrosion resistance but poor mechanical properties. Nitriding can increase the surface hardness but typically at the expense of corrosion resistance. Besides, nitriding of inner surfaces is not straight forward, as control of the plasma there is challenging. This work has focused on the development of active screen plasma nitriding processes of inner geometries of the widely used AISI 316L austenitic stainless steel, with preservation of the corrosion resistance. The structure and composition of the nitrided surfaces were studied and corrosion resistance of the inner surfaces assessed. As a result of the study, a relation has been established between plasma treatment parameters, geometrical features and the corrosion resistance. Additionally, electro-tribological studies have been performed. It has been observed that wear resistance improved and that ECR (Electrical Contact Resistance) is a good indicator of the wear phenomena occurring along the test and potentially could be a useful and simple monitoring tool of the status of the surface and assist in defining safe and dependable operational lives. As part of the study, an equivalent electric circuit is proposed. In conclusion, treatment conditions for AISI316L inner tube surfaces have been defined, with corrosion resistance preservation and improved tribological performance, while ECR monitoring has been found insightful and informative of the evolution of the later.en
dc.language.isoengen
dc.publisherElsevier B.V.en
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titlePlasma nitriding of the inner surface of stainless steel tubesen
dc.typearticleen
dc.identifier.doi10.1016/j.surfcoat.2018.04.057en
dc.rights.accessRightsembargoedAccessen
dc.subject.keywordsActive screen plasma nitridingen
dc.subject.keywordsStainless steelen
dc.subject.keywordsTubesen
dc.subject.keywordsInner surfaceen
dc.subject.keywordsHollow cathodeen
dc.journal.titleSurface and Coatings Technologyen
dc.page.final122
dc.page.initial116
dc.volume.number355


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