Laser Cladding of MCrAlY coatings on stainless steel

MCrAlY alloys (where M stands for Ni,Co or both) are commonly used as overlay protective coatings in gas turbine engine components against high temperature oxidation and corrosion. The protective effect of these alloys is due to the formation of a continuous thermally stable oxide layer on the coati...

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Detalles Bibliográficos
Autores: Tobar, M.J., Amado, J.M., Yáñez, A., Pereira Falcón, Juan Carlos, Amigó, Vicente|||0000-0002-2107-0273
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/59983
Acceso en línea:https://riunet.upv.es/handle/10251/59983
Access Level:acceso abierto
Palabra clave:MCrAlY
Laser cladding
Coating
CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA
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spelling Laser Cladding of MCrAlY coatings on stainless steelTobar, M.J.Amado, J.M.Yáñez, A.Pereira Falcón, Juan CarlosAmigó, Vicente|||0000-0002-2107-0273MCrAlYLaser claddingCoatingCIENCIA DE LOS MATERIALES E INGENIERIA METALURGICAMCrAlY alloys (where M stands for Ni,Co or both) are commonly used as overlay protective coatings in gas turbine engine components against high temperature oxidation and corrosion. The protective effect of these alloys is due to the formation of a continuous thermally stable oxide layer on the coating surface. In this work several types of MCrAlY alloys, differing in their elemental composition, have been deposited on austenitic stainless steel by means of laser cladding. The microstructure of the coatings have been characterized by SEM-EDS and XRD. As expected, elemental composition compatible with γ-Ni/γ'-Ni3Al, β-Ni/β'-NiAl or γCo/β-(Co,Ni)Al phases are observed in hypoeutectic or hypereutectic microstructures depending on the alloy composition. The high temperature oxidation behavior of the coatings was evaluated by air furnace oxidation tests at 1100ºC for 200 h. The oxidized surface of the samples was examined by SEM-EDS and the oxides present identified by theoretical stoichiometric calculations. Results indicate the formation of a uniform Al3O2 protective oxide scale with NiO, CoO, Y2O3/YAlO3 and Cr2O3 oxide inclusions.ElsevierDepartamento de Ingeniería Mecánica y de MaterialesEscuela Técnica Superior de Ingeniería Industrial Instituto Universitario de Investigación de Tecnología de los Materiales de la UPVRepositorio Institucional de la Universitat Politècnica de València Riunet20142014-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/59983reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/599832026-06-13T07:49:27Z
dc.title.none.fl_str_mv Laser Cladding of MCrAlY coatings on stainless steel
title Laser Cladding of MCrAlY coatings on stainless steel
spellingShingle Laser Cladding of MCrAlY coatings on stainless steel
Tobar, M.J.
MCrAlY
Laser cladding
Coating
CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA
title_short Laser Cladding of MCrAlY coatings on stainless steel
title_full Laser Cladding of MCrAlY coatings on stainless steel
title_fullStr Laser Cladding of MCrAlY coatings on stainless steel
title_full_unstemmed Laser Cladding of MCrAlY coatings on stainless steel
title_sort Laser Cladding of MCrAlY coatings on stainless steel
dc.creator.none.fl_str_mv Tobar, M.J.
Amado, J.M.
Yáñez, A.
Pereira Falcón, Juan Carlos
Amigó, Vicente|||0000-0002-2107-0273
author Tobar, M.J.
author_facet Tobar, M.J.
Amado, J.M.
Yáñez, A.
Pereira Falcón, Juan Carlos
Amigó, Vicente|||0000-0002-2107-0273
author_role author
author2 Amado, J.M.
Yáñez, A.
Pereira Falcón, Juan Carlos
Amigó, Vicente|||0000-0002-2107-0273
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Mecánica y de Materiales
Escuela Técnica Superior de Ingeniería Industrial
 Instituto Universitario de Investigación de Tecnología de los Materiales de la UPV
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv MCrAlY
Laser cladding
Coating
CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA
topic MCrAlY
Laser cladding
Coating
CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA
description MCrAlY alloys (where M stands for Ni,Co or both) are commonly used as overlay protective coatings in gas turbine engine components against high temperature oxidation and corrosion. The protective effect of these alloys is due to the formation of a continuous thermally stable oxide layer on the coating surface. In this work several types of MCrAlY alloys, differing in their elemental composition, have been deposited on austenitic stainless steel by means of laser cladding. The microstructure of the coatings have been characterized by SEM-EDS and XRD. As expected, elemental composition compatible with γ-Ni/γ'-Ni3Al, β-Ni/β'-NiAl or γCo/β-(Co,Ni)Al phases are observed in hypoeutectic or hypereutectic microstructures depending on the alloy composition. The high temperature oxidation behavior of the coatings was evaluated by air furnace oxidation tests at 1100ºC for 200 h. The oxidized surface of the samples was examined by SEM-EDS and the oxides present identified by theoretical stoichiometric calculations. Results indicate the formation of a uniform Al3O2 protective oxide scale with NiO, CoO, Y2O3/YAlO3 and Cr2O3 oxide inclusions.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/59983
url https://riunet.upv.es/handle/10251/59983
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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