Wear Resistance of Aluminum Matrix Composites' Coatings Added on AA6082 Aluminum Alloy by Laser Cladding

Ceramic-reinforced metal matrix composites are known for their high wear resistance. A coating based on these materials would be helpful to improve the wear behavior of aluminum alloys. Laser cladding has been used to deposit a coating consisting of an aluminum alloy reinforced with SiC particles on...

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Autores: Riquelme, Ainhoa, Rodrigo, Pilar, Escalera-Rodríguez, María Dolores, Rams, Joaquin
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad Rey Juan Carlos
Repositorio:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
OAI Identifier:oai:burjcdigital.urjc.es:10115/30096
Acceso en línea:https://hdl.handle.net/10115/30096
Access Level:acceso abierto
Palabra clave:laser cladding
coatings
AA6082
wear
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spelling Wear Resistance of Aluminum Matrix Composites' Coatings Added on AA6082 Aluminum Alloy by Laser CladdingRiquelme, AinhoaRodrigo, PilarEscalera-Rodríguez, María DoloresRams, Joaquinlaser claddingcoatingsAA6082wearCeramic-reinforced metal matrix composites are known for their high wear resistance. A coating based on these materials would be helpful to improve the wear behavior of aluminum alloys. Laser cladding has been used to deposit a coating consisting of an aluminum alloy reinforced with SiC particles on an AA6082 aluminum alloy. Laser cladding is a very energetic technique that causes the SiC particles to react with the molten aluminum to form Al4C3, which degrades the particles and reduces the properties of the coating. The formation of this detrimental compound was successfully achieved with the addition of Silicon and Titanium to the composite matrix. The microstructures of the newly developed material were characterized and the wear behavior was studied under dry sliding conditions on a pin-on-disc tribometer. The relationship between the microstructure and wear behavior was identified. The absence of Al4C3 in the Al40Si/SiC and Al12Si20Ti/SiC coatings’ microstructures resulted in an abrasion mechanism instead of a delamination mechanism. The wear behavior changed along the sliding distances. During the first 200 m of sliding distances, the wear rate of all coatings was lower than the uncoated one due to their higher microhardness. For longer sliding distances, the wear resistance of the uncoated AA6082 was higher than the coated ones due to the formation of a lubricant oxide layer on the AA6082 worn surface. For 1000 m of wear distances, the wear behavior was different for each coating. The wear rate of the Al12Si/SiC coating continued growing due to the delamination mechanism and the presence of Al4C3 that acted as starting crack points. The wear rate of the Al40Si/SiC coating decreased due to the formation of a thin, superficial oxide layer. The wear rate of the Al12SiTi/SiC progressively decreased along the sliding distance to below the substrate wear rate.MDPI202420242021info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10115/30096reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlosinstname:Universidad Rey Juan CarlosInglésAttribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:burjcdigital.urjc.es:10115/300962026-06-24T12:48:17Z
dc.title.none.fl_str_mv Wear Resistance of Aluminum Matrix Composites' Coatings Added on AA6082 Aluminum Alloy by Laser Cladding
title Wear Resistance of Aluminum Matrix Composites' Coatings Added on AA6082 Aluminum Alloy by Laser Cladding
spellingShingle Wear Resistance of Aluminum Matrix Composites' Coatings Added on AA6082 Aluminum Alloy by Laser Cladding
Riquelme, Ainhoa
laser cladding
coatings
AA6082
wear
title_short Wear Resistance of Aluminum Matrix Composites' Coatings Added on AA6082 Aluminum Alloy by Laser Cladding
title_full Wear Resistance of Aluminum Matrix Composites' Coatings Added on AA6082 Aluminum Alloy by Laser Cladding
title_fullStr Wear Resistance of Aluminum Matrix Composites' Coatings Added on AA6082 Aluminum Alloy by Laser Cladding
title_full_unstemmed Wear Resistance of Aluminum Matrix Composites' Coatings Added on AA6082 Aluminum Alloy by Laser Cladding
title_sort Wear Resistance of Aluminum Matrix Composites' Coatings Added on AA6082 Aluminum Alloy by Laser Cladding
dc.creator.none.fl_str_mv Riquelme, Ainhoa
Rodrigo, Pilar
Escalera-Rodríguez, María Dolores
Rams, Joaquin
author Riquelme, Ainhoa
author_facet Riquelme, Ainhoa
Rodrigo, Pilar
Escalera-Rodríguez, María Dolores
Rams, Joaquin
author_role author
author2 Rodrigo, Pilar
Escalera-Rodríguez, María Dolores
Rams, Joaquin
author2_role author
author
author
dc.subject.none.fl_str_mv laser cladding
coatings
AA6082
wear
topic laser cladding
coatings
AA6082
wear
description Ceramic-reinforced metal matrix composites are known for their high wear resistance. A coating based on these materials would be helpful to improve the wear behavior of aluminum alloys. Laser cladding has been used to deposit a coating consisting of an aluminum alloy reinforced with SiC particles on an AA6082 aluminum alloy. Laser cladding is a very energetic technique that causes the SiC particles to react with the molten aluminum to form Al4C3, which degrades the particles and reduces the properties of the coating. The formation of this detrimental compound was successfully achieved with the addition of Silicon and Titanium to the composite matrix. The microstructures of the newly developed material were characterized and the wear behavior was studied under dry sliding conditions on a pin-on-disc tribometer. The relationship between the microstructure and wear behavior was identified. The absence of Al4C3 in the Al40Si/SiC and Al12Si20Ti/SiC coatings’ microstructures resulted in an abrasion mechanism instead of a delamination mechanism. The wear behavior changed along the sliding distances. During the first 200 m of sliding distances, the wear rate of all coatings was lower than the uncoated one due to their higher microhardness. For longer sliding distances, the wear resistance of the uncoated AA6082 was higher than the coated ones due to the formation of a lubricant oxide layer on the AA6082 worn surface. For 1000 m of wear distances, the wear behavior was different for each coating. The wear rate of the Al12Si/SiC coating continued growing due to the delamination mechanism and the presence of Al4C3 that acted as starting crack points. The wear rate of the Al40Si/SiC coating decreased due to the formation of a thin, superficial oxide layer. The wear rate of the Al12SiTi/SiC progressively decreased along the sliding distance to below the substrate wear rate.
publishDate 2021
dc.date.none.fl_str_mv 2021
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10115/30096
url https://hdl.handle.net/10115/30096
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
collection BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
repository.name.fl_str_mv
repository.mail.fl_str_mv
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