{"id":27106,"date":"2015-09-30T23:51:15","date_gmt":"2015-09-30T21:51:15","guid":{"rendered":"https:\/\/icmsva.vallealto.es\/?articulos_sci=role-of-y-in-the-oxidation-resistance-of-cralyn-coatings"},"modified":"2026-04-14T11:47:24","modified_gmt":"2026-04-14T09:47:24","slug":"role-of-y-in-the-oxidation-resistance-of-cralyn-coatings","status":"publish","type":"articulos_sci","link":"https:\/\/icmsva.vallealto.es\/?articulos_sci=role-of-y-in-the-oxidation-resistance-of-cralyn-coatings","title":{"rendered":"Role of Y in the oxidation resistance of CrAlYN coatings"},"content":{"rendered":"<figure><img decoding=\"async\" src=\"https:\/\/icmsva.vallealto.es\/wp-content\/uploads\/2015\/09\/Role-of-Y-in-the-oxidation-resistance-of-CrAlYN-co-1.jpg\" alt=\"Role of Y in the oxidation resistance of CrAlYN coatings\" \/><\/figure>\n<p>CrAlYN coatings with different aluminum (4\u201312\u00a0at.%) and yttrium (2\u20135\u00a0at.%) contents are deposited by d.c. reactive magnetron sputtering on silicon and M2 steel substrates using metallic targets and Ar\/N2\u00a0mixtures. The influence of the nanostructure and chemical elemental distribution on the oxidation resistance after heating in air at 1000\u00a0\u00b0C 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\u00a0at.% 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.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CrAlYN coatings with different aluminum (4\u201312\u00a0at.%) and yttrium (2\u20135\u00a0at.%) contents are deposited by d.c. reactive magnetron sputtering on silicon and M2 steel substrates using metallic targets and Ar\/N2\u00a0mixtures. The influence of the nanostructure and chemical elemental distribution on the oxidation resistance after heating in air at 1000\u00a0\u00b0C is studied by means of cross-sectional scanning electron&hellip;<\/p>\n","protected":false},"featured_media":27112,"template":"","autores":[],"grupos_de_investigacion":[143],"revistas":[208],"anos":[890],"class_list":["post-27106","articulos_sci","type-articulos_sci","status-publish","has-post-thumbnail","hentry","grupos_de_investigacion-materiales-nanoestructurados-y-microestructura","revistas-applied-surface-science","anos-890","description-off"],"acf":[],"_links":{"self":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/27106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci"}],"about":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/types\/articulos_sci"}],"version-history":[{"count":1,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/27106\/revisions"}],"predecessor-version":[{"id":27113,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/27106\/revisions\/27113"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/media\/27112"}],"wp:attachment":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27106"}],"wp:term":[{"taxonomy":"autores","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fautores&post=27106"},{"taxonomy":"grupos_de_investigacion","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fgrupos_de_investigacion&post=27106"},{"taxonomy":"revistas","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Frevistas&post=27106"},{"taxonomy":"anos","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fanos&post=27106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}