Wettability and microstructural evolution of copper filler in W and EUROFER brazed joints

Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No 101052200 — EUROfusion). Views and o...

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Autores: Izaguirre, Ignacio, Prado, Javier de, Sánchez, María, Ureña, Alejandro
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad Rey Juan Carlos
Repositorio:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
OAI Identifier:oai:burjcdigital.urjc.es:10115/34936
Acceso en línea:https://hdl.handle.net/10115/34936
Access Level:acceso abierto
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spelling Wettability and microstructural evolution of copper filler in W and EUROFER brazed jointsIzaguirre, IgnacioPrado, Javier deSánchez, MaríaUreña, AlejandroOpen Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No 101052200 — EUROfusion). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them.In terms of wettability, active systems are characterized by a reduction in interfacial energy as the time at specific conditions is increased. This article aims to investigate the evolution of wettability and microstructure, which undergoes a critical transformation at temperatures and dwell times near brazing conditions due to their significant impact on resultant mechanical properties. The objective is to enhance wettability and prevent the formation of different phases that can occur rapidly within the brazing window conditions. Up to 1105 °C, complete fusion of the filler does not occur. However, once it happens, the expansion of the copper filler in EUROFER increases up to 400%, and the contact angle reduces from 100° to 10°, indicating an active wetting behavior. On the other hand, when copper is used with tungsten, an inert behavior is observed, maintaining the contact angle around 70°. Brazed joints carried out under the most promising wetting conditions demonstrated that at 1110 °C-1 min, various phenomena began to occur. This includes solid-state diffusion of copper in the EUROFER, following the austenitic grain boundaries, and partial dissolution of Fe in the copper braze. Increasing the brazing time from 2 to 5 min achieved high interfacial adhesion properties and controlled the diffusion layer and Fe-rich band formed at the W-braze interface, resulting in the best mechanical results (295 MPa).Springer202420242024info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10115/34936reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlosinstname:Universidad Rey Juan CarlosInglésAtribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:burjcdigital.urjc.es:10115/349362026-06-24T12:48:17Z
dc.title.none.fl_str_mv Wettability and microstructural evolution of copper filler in W and EUROFER brazed joints
title Wettability and microstructural evolution of copper filler in W and EUROFER brazed joints
spellingShingle Wettability and microstructural evolution of copper filler in W and EUROFER brazed joints
Izaguirre, Ignacio
title_short Wettability and microstructural evolution of copper filler in W and EUROFER brazed joints
title_full Wettability and microstructural evolution of copper filler in W and EUROFER brazed joints
title_fullStr Wettability and microstructural evolution of copper filler in W and EUROFER brazed joints
title_full_unstemmed Wettability and microstructural evolution of copper filler in W and EUROFER brazed joints
title_sort Wettability and microstructural evolution of copper filler in W and EUROFER brazed joints
dc.creator.none.fl_str_mv Izaguirre, Ignacio
Prado, Javier de
Sánchez, María
Ureña, Alejandro
author Izaguirre, Ignacio
author_facet Izaguirre, Ignacio
Prado, Javier de
Sánchez, María
Ureña, Alejandro
author_role author
author2 Prado, Javier de
Sánchez, María
Ureña, Alejandro
author2_role author
author
author
description Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No 101052200 — EUROfusion). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them.
publishDate 2024
dc.date.none.fl_str_mv 2024
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/10115/34936
url https://hdl.handle.net/10115/34936
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Atribución 4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución 4.0 Internacional
http://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 Springer
publisher.none.fl_str_mv Springer
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
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