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dc.rights.licenseAtribución-NoComercial 4.0 Internacional
dc.contributor.authorCastillejo Nieto, Fabio Enrique
dc.contributor.authorOlaya Florez, Jhon Jairo
dc.contributor.authorAlfonso, José Edgar
dc.date.accessioned2019-07-02T18:48:13Z
dc.date.available2019-07-02T18:48:13Z
dc.date.issued2015-09-01
dc.identifier.issnISSN: 2346-2183
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/60651
dc.description.abstractNb-V complex carbide coatings were produced on AISI D2 steel substrates using the thermo-reactive diffusion (TRD) process in order to improve the surface hardness and wear resistance of this tool steel. The carbide coating treatment was performed using molten borax with added ferroniobium, ferrovanadium, and aluminum at temperatures of 1223, 1293, and 1363 K for 2, 3, 4, and 5 h. The coating layers were characterized with scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDS). The growth rates of the coatings were studied, and a kinetic model of the layer thickness was constructed as a function of the time and temperature treatment. The hardness and friction coefficient (COF) of the coatings was measured through nanoindentation and pin on disk test respectively. The carbide layers had a homogeneous thickness and a hardness of 37.63 GPa, which is close to values obtained in superhard materials, and the COF was in the range of 0,3 for the coated steels.
dc.format.mimetypeapplication/pdf
dc.language.isospa
dc.publisherUniversidad Nacional de Colombia (Sede Medellín). Facultad de Minas.
dc.relationhttps://revistas.unal.edu.co/index.php/dyna/article/view/46657
dc.relation.ispartofUniversidad Nacional de Colombia Revistas electrónicas UN Dyna
dc.relation.ispartofDyna
dc.rightsDerechos reservados - Universidad Nacional de Colombia
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subject.ddc62 Ingeniería y operaciones afines / Engineering
dc.titleWear resistance of vanadium-niobium carbide layers grown via TRD
dc.typeArtículo de revista
dc.type.driverinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.eprintshttp://bdigital.unal.edu.co/58983/
dc.relation.referencesCastillejo Nieto, Fabio Enrique and Olaya Florez, Jhon Jairo and Alfonso, José Edgar (2015) Wear resistance of vanadium-niobium carbide layers grown via TRD. DYNA, 82 (193). pp. 104-109. ISSN 2346-2183
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.subject.proposalThermo Reactive Diffusion
dc.subject.proposalNiobium-Vanadium Carbide
dc.subject.proposalHardness
dc.subject.proposalwear
dc.type.coarhttp://purl.org/coar/resource_type/c_6501
dc.type.coarversionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.contentText
dc.type.redcolhttp://purl.org/redcol/resource_type/ART
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2


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Atribución-NoComercial 4.0 InternacionalThis work is licensed under a Creative Commons Reconocimiento-NoComercial 4.0.This document has been deposited by the author (s) under the following certificate of deposit