Fatigue bending behavior of cold-sprayed nickel-based superalloy coatings

Cold-sprayed Ni-based superalloy coatings offer new possibilities for manufacturing and repairing damaged components, such as gas turbine blades or other parts of aircraft engines. This development shines a new light on the conventional additive manufacturing technologies and significantly broadens...

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Detalles Bibliográficos
Autores: Silvello, A. (Alessio), Cavaliere, Pasquale Daniele, Rizzo, A., Valerini, D., Dosta Parras, Joan, García Cano, Irene
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/137279
Acceso en línea:https://hdl.handle.net/2445/137279
Access Level:acceso abierto
Palabra clave:Aliatges
Resistència de materials
Alloys
Strength of materials
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spelling Fatigue bending behavior of cold-sprayed nickel-based superalloy coatingsSilvello, A. (Alessio)Cavaliere, Pasquale DanieleRizzo, A.Valerini, D.Dosta Parras, JoanGarcía Cano, IreneAliatgesResistència de materialsAlloysStrength of materialsCold-sprayed Ni-based superalloy coatings offer new possibilities for manufacturing and repairing damaged components, such as gas turbine blades or other parts of aircraft engines. This development shines a new light on the conventional additive manufacturing technologies and significantly broadens application fields of cold spray. The idea is that cold spray can contribute to improving the fatigue properties of manufacturing and repaired components. This study deals with the analysis of the microstructural and mechanical properties of IN625 cold-sprayed coatings on V-notched carbon steel substrate. Process conditions of 1000 degrees C and 50bar were employed to produce coatings in V-notched (60 degrees and 90 degrees) samples in order to evaluate the fatigue crack behavior of the sprayed material. Bending tests were carried out in order to evaluate the crack propagation in the coatings during cyclic loading. The K factor was quantified for the two different notch geometries. After fatigue tests, the cracking mechanisms were observed through SEM. Optical microscopy, nanoindentation as a function of coating/substrate distance and corrosion tests were performed. Porosity measurements through image analyses were done to characterize the coatings' quality. The results achieved demonstrate that cold spray deposition and repair can contribute to resistance and to the increase in the global fatigue life of cracked structures.ASM International2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/137279Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1007/s11666-019-00865-1Journal of Thermal Spray Technology, 2019, vol. 28, num. 5, p. 930-938https://doi.org/10.1007/s11666-019-00865-1(c) ASM International, 2019info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1372792026-05-27T06:46:51Z
dc.title.none.fl_str_mv Fatigue bending behavior of cold-sprayed nickel-based superalloy coatings
title Fatigue bending behavior of cold-sprayed nickel-based superalloy coatings
spellingShingle Fatigue bending behavior of cold-sprayed nickel-based superalloy coatings
Silvello, A. (Alessio)
Aliatges
Resistència de materials
Alloys
Strength of materials
title_short Fatigue bending behavior of cold-sprayed nickel-based superalloy coatings
title_full Fatigue bending behavior of cold-sprayed nickel-based superalloy coatings
title_fullStr Fatigue bending behavior of cold-sprayed nickel-based superalloy coatings
title_full_unstemmed Fatigue bending behavior of cold-sprayed nickel-based superalloy coatings
title_sort Fatigue bending behavior of cold-sprayed nickel-based superalloy coatings
dc.creator.none.fl_str_mv Silvello, A. (Alessio)
Cavaliere, Pasquale Daniele
Rizzo, A.
Valerini, D.
Dosta Parras, Joan
García Cano, Irene
author Silvello, A. (Alessio)
author_facet Silvello, A. (Alessio)
Cavaliere, Pasquale Daniele
Rizzo, A.
Valerini, D.
Dosta Parras, Joan
García Cano, Irene
author_role author
author2 Cavaliere, Pasquale Daniele
Rizzo, A.
Valerini, D.
Dosta Parras, Joan
García Cano, Irene
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Aliatges
Resistència de materials
Alloys
Strength of materials
topic Aliatges
Resistència de materials
Alloys
Strength of materials
description Cold-sprayed Ni-based superalloy coatings offer new possibilities for manufacturing and repairing damaged components, such as gas turbine blades or other parts of aircraft engines. This development shines a new light on the conventional additive manufacturing technologies and significantly broadens application fields of cold spray. The idea is that cold spray can contribute to improving the fatigue properties of manufacturing and repaired components. This study deals with the analysis of the microstructural and mechanical properties of IN625 cold-sprayed coatings on V-notched carbon steel substrate. Process conditions of 1000 degrees C and 50bar were employed to produce coatings in V-notched (60 degrees and 90 degrees) samples in order to evaluate the fatigue crack behavior of the sprayed material. Bending tests were carried out in order to evaluate the crack propagation in the coatings during cyclic loading. The K factor was quantified for the two different notch geometries. After fatigue tests, the cracking mechanisms were observed through SEM. Optical microscopy, nanoindentation as a function of coating/substrate distance and corrosion tests were performed. Porosity measurements through image analyses were done to characterize the coatings' quality. The results achieved demonstrate that cold spray deposition and repair can contribute to resistance and to the increase in the global fatigue life of cracked structures.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/137279
url https://hdl.handle.net/2445/137279
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1007/s11666-019-00865-1
Journal of Thermal Spray Technology, 2019, vol. 28, num. 5, p. 930-938
https://doi.org/10.1007/s11666-019-00865-1
dc.rights.none.fl_str_mv (c) ASM International, 2019
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) ASM International, 2019
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ASM International
publisher.none.fl_str_mv ASM International
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301629

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