dc.creator | Sánchez López, Juan Carlos | es |
dc.creator | Rojas Ruiz, Teresa Cristina | es |
dc.creator | Brizuela, Marta | es |
dc.creator | Justo, A. | es |
dc.creator | Jiménez de Haro, María del Carmen | es |
dc.creator | Mariscal, Antonio | es |
dc.creator | Escobar-Galindo, Ramón | es |
dc.creator | El Mrabet, Said | es |
dc.creator | Domínguez Meister, Santiago | es |
dc.date.accessioned | 2018-04-10T10:40:53Z | |
dc.date.available | 2018-04-10T10:40:53Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Sánchez López, J.C., Rojas Ruiz, T.C., Brizuela, M., Justo, A., Jiménez de Haro, M.C., Mariscal, A.,...,Domínguez Meister, S. (2015). Role of Y in the oxidation resistance of CrAlYN coatings. Applied Surface Science, 353, 504-513. | |
dc.identifier.issn | 0169-4332 | es |
dc.identifier.uri | https://hdl.handle.net/11441/72286 | |
dc.description.abstract | CrAlYN coatings with different aluminum (4–12 at.%) and yttrium (2–5 at.%) contents are deposited by d.c. reactive magnetron sputtering on silicon and M2 steel substrates using metallic targets and Ar/N2 mixtures. The influence of the nanostructure and chemical elemental distribution on the oxidation resistance after heating in air at 1000 °C is studied by means of cross-sectional scanning electron microscopy (X-SEM), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD) and glow discharge optical emission spectroscopy (GD-OES). The sequential exposure to the metallic targets during the synthesis leads to a multilayer structure where concentration of metallic elements (Cr, Al and Y) is changing periodically. A good oxidation resistance is observed when Al- and Y-rich regions are separated by well-defined CrN layers, maintaining crystalline coherence along the columnar structure. This protective behavior is independent of the type of substrate and corresponds to the formation of a thin mixed (Al, Cr)-oxide scale that protects the film underneath. The GD-OES and XRD analysis have demonstrated that Y acts as a reactive element, blocking the Fe and C atoms diffusion from the steel and favoring higher Al/Cr ratio in the passivation layer after heating. The coating with Y content around 4 at.% exhibited the best performance with a thinner oxide scale, a delay in the CrN decomposition and transformation to Cr2N, and a more effective Fe and C blocking. | es |
dc.description.sponsorship | España Ministerio de Ciencia e Innovación MAT2007-66881 MAT2010-21597 MAT2011-29074 | es |
dc.description.sponsorship | FUNCOAT CSD2008-00023 | es |
dc.description.sponsorship | Junta de Andalucía TEP217 | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Applied Surface Science, 353, 504-513. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | CrAlN | es |
dc.subject | Magnetron sputtering | es |
dc.subject | Yttrium | es |
dc.subject | Oxidation resistance | es |
dc.subject | Mechanism | es |
dc.title | Role of Y in the oxidation resistance of CrAlYN coatings | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.relation.projectID | TEP217 | es |
dc.relation.projectID | CSD2008-00023 | es |
dc.relation.projectID | MAT2007-66881 | es |
dc.relation.projectID | MAT2010-21597 | es |
dc.relation.projectID | MAT2011-29074 | es |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.apsusc.2015.06.099 | es |
dc.identifier.doi | 10.1016/j.apsusc.2015.06.099 | es |
idus.format.extent | 10 p. | es |
dc.journaltitle | Applied Surface Science | es |
dc.publication.volumen | 353 | es |
dc.publication.initialPage | 504 | es |
dc.publication.endPage | 513 | es |