Reactivity of PVD cathodic arc coated hardmetal tools with Inconel 718: Correlation between diffusion couples and tool wear in drilling tests

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dc.contributor.authorArdila-Téllez, L. C.
dc.contributor.authorJiménez, A.
dc.contributor.authorMoreno-Téllez, C. M.
dc.contributor.authorArizmendi, M.
dc.contributor.authorMujica-Roncery, L.
dc.contributor.authorSánchez, J. M.
dc.contributor.institutionCIRMETAL
dc.date.accessioned2024-07-24T12:01:03Z
dc.date.available2024-07-24T12:01:03Z
dc.date.issued2023-10-25
dc.descriptionPublisher Copyright: © 2023 Elsevier B.V.
dc.description.abstractThe reactivity of Al0.66Ti0.33N, Al0.31Ti0.62Si0.07N, Al0.60Cr0.40N, and Al0.38Cr0.54Si0.07N cathodic arc-coated hardmetal tools with Inconel 718 has been evaluated by using diffusion couple experiments at 900 °C and 1100 °C. As expected, a strong reaction occurs at these temperatures between Inconel 718 and uncoated hardmetal samples leading to the formation of η phases; mainly M12C and M6C carbides. PVD coatings act as diffusion barriers limiting the presence of such reactions as long as they maintain their structure in contact with Inconel 718 at high temperatures. Diffusion couple experiments confirm that Cr-containing coatings are significantly more unstable than Al0.66Ti0.33N or Al0.31Ti0.62Si0.07N materials, thus leading to notable differences in cutting performance. The relation between diffusion couple results and drill wear mechanisms in drilling Inconel 718 with different coating materials are also analysed. The best results are obtained either with Al0.66Ti0.33N or Al0.31Ti0.62Si0.07N coated drills, where the coating remains longer time at the cutting edge leading to more efficient protection, especially at the drill corner.en
dc.description.statusPeer reviewed
dc.identifier.citationArdila-Téllez , L C , Jiménez , A , Moreno-Téllez , C M , Arizmendi , M , Mujica-Roncery , L & Sánchez , J M 2023 , ' Reactivity of PVD cathodic arc coated hardmetal tools with Inconel 718 : Correlation between diffusion couples and tool wear in drilling tests ' , Surface and Coatings Technology , vol. 471 , 129892 . https://doi.org/10.1016/j.surfcoat.2023.129892
dc.identifier.doi10.1016/j.surfcoat.2023.129892
dc.identifier.issn0257-8972
dc.identifier.urihttps://hdl.handle.net/11556/3104
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85167592986&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofSurface and Coatings Technology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsCr-, Al- and It-based coatings
dc.subject.keywordsDiffusion couples
dc.subject.keywordsDrill wear
dc.subject.keywordsInconel 718
dc.subject.keywordsPVD cathodic arc coatings
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.titleReactivity of PVD cathodic arc coated hardmetal tools with Inconel 718: Correlation between diffusion couples and tool wear in drilling testsen
dc.typejournal article
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