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High temperature oxidation behavior of laser cladding MCrAlY coatings on austenitic stainless steel

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High temperature oxidation behavior of laser cladding MCrAlY coatings on austenitic stainless steel

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dc.contributor.author Pereira, Juan Carlos es_ES
dc.contributor.author Zambrano, J.C. es_ES
dc.contributor.author Tobar, M.J. es_ES
dc.contributor.author Yañez, A. es_ES
dc.contributor.author Amigó Borrás, Vicente es_ES
dc.date.accessioned 2015-07-06T09:48:12Z
dc.date.available 2015-07-06T09:48:12Z
dc.date.issued 2015-05-25
dc.identifier.issn 0257-8972
dc.identifier.uri http://hdl.handle.net/10251/52712
dc.description.abstract The development of coatings has become technologically significant in many industries. A common approach in high temperature applications is the production of new thermal barrier coatings (TBCs). Laser cladding (LC) can be an alternative method to thermal spraying in the production of high quality bond coats in TBCs. In this work, dense coatings that formed adequate metallurgical bondswith the substrate were obtained by overlapping coaxial laser cladding. The oxidation behavior of the coating specimens was assessed by air furnace oxidation tests at 1100 °C for up to 200 h. The coatings' microstructures are composed of a γ matrix phase and a β interdendritic phase, confirmed by X-ray diffraction (XRD). At high temperatures, the growth and formation of oxide layers protect the underlying coating and substrate from oxidation at elevated temperatures. The possible formation and morphology of oxides on the oxidized surface were evaluated using scanning electron microscopy (SEM), XRD and atom force microscopy (AFM). The evaluation of the thickness and phases present in thermally grown oxide scales was evaluated using field emission scanning electron microscopy (FESEM) and energy dispersive spectroscopy microanalysis (EDS), with a previous cut using the Focused Ion Beam Ga Column (FIB) method. es_ES
dc.description.sponsorship The authors acknowledge the financial support of the Ministry of Science and Innovation of the Government of Spain through research project MAT2011-28492-C03 and the Generalitat Valenciana through ACOMP/2013/114 support. Professor Juan Carlos Pereira Falcon thanks the University of Carabobo for the financial support to pursue his doctoral studies at the UPV. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Ministry of Science and Innovation of the Government of Spain through research project MAT2011-28492-C03 es_ES
dc.relation Generalitat Valenciana through ACOMP/2013/114 es_ES
dc.relation University of Carabobo for the financial support es_ES
dc.relation.ispartof Surface and Coatings Technology es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject MCrAlY es_ES
dc.subject Coatings es_ES
dc.subject High-temperature es_ES
dc.subject Oxidation es_ES
dc.subject Laser cladding es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.title High temperature oxidation behavior of laser cladding MCrAlY coatings on austenitic stainless steel es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.surfcoat.2015.02.050
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Tecnología de Materiales - Institut de Tecnologia de Materials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials es_ES
dc.description.bibliographicCitation Pereira, JC.; Zambrano, J.; Tobar, M.; Yañez, A.; Amigó Borrás, V. (2015). High temperature oxidation behavior of laser cladding MCrAlY coatings on austenitic stainless steel. Surface and Coatings Technology. 270:243-248. doi:10.1016/j.surfcoat.2015.02.050 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.surfcoat.2015.02.050 es_ES
dc.description.upvformatpinicio 243 es_ES
dc.description.upvformatpfin 248 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 270 es_ES
dc.relation.senia 285102


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