Design and validation of an in-situ hydrogen embrittlement system in a rotary bending fatigue testing machine

Hydrogen is a promising clean energy source, but its integration brings challenges, notably hydrogen embrittlement (HE), which degrades materials used in hydrogen infrastructure. Metals, especially steel, are vulnerable, leading to reduced strength and safety risks. Testing methodologies, including...

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Autores: Calaf Chica, José, Muñoz Manero, José E., García Tárrago, María José, Preciado Calzada, Mónica, Bravo Díez, Pedro Miguel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad de Burgos (UBU)
Repositorio:Repositorio Institucional de la Universidad de Burgos (RIUBU)
OAI Identifier:oai:riubu.ubu.es:10259/11298
Acceso en línea:https://hdl.handle.net/10259/11298
Access Level:acceso abierto
Palabra clave:Rotary bending fatigue machine
Hydrogen
SPT
Embrittlement
Hidrógeno
Materiales-ensayos
Hydroge
Materials-Testing
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spelling Design and validation of an in-situ hydrogen embrittlement system in a rotary bending fatigue testing machineCalaf Chica, JoséMuñoz Manero, José E.García Tárrago, María JoséPreciado Calzada, MónicaBravo Díez, Pedro MiguelRotary bending fatigue machineHydrogenSPTEmbrittlementHidrógenoMateriales-ensayosHydrogeMaterials-TestingHydrogen is a promising clean energy source, but its integration brings challenges, notably hydrogen embrittlement (HE), which degrades materials used in hydrogen infrastructure. Metals, especially steel, are vulnerable, leading to reduced strength and safety risks. Testing methodologies, including in-situ and ex-situ methods, are crucial to understanding HE. Insitu methods simulate real-time exposure, whereas ex-situ methods focus on post-exposure effects. Rotary bending fatigue tests are particularly interesting as they are cost-effective fatigue machines. This study aims to design and implement an electrochemical cell for in-situ HE testing under cyclic loading in this particular fatigue machine. The study focuses on adapting an electrochemical cell for a rotary bending fatigue machine, testing 42CrMo4 steel. Three key tasks were performed: (i) determining electrochemical parameters for inducing HE through Small Punch Tests (SPTs), (ii) evaluating an electrolyte jet system’s effectiveness, and (iii) designing and validating the electrochemical cell. Electrolytes tested included acid and alkaline solutions, and a novel jetting system was devised to ensure electrolyte coverage during high-speed rotation. The system’s electrical configuration and the cell’s structural adaptations for in-situ hydrogen charging were critical design elements. The tests confirmed the system’s effectiveness in charging the specimen with hydrogen, as evidenced by fatigue life reduction and fracture surface analysis. Specimens precharged with hydrogen, specifically in acidic environments, displayed increased brittleness and premature failure, contrasting with the ductile behavior of non-embrittled specimens. This highlights the system’s potential for future studies on material resistance to hydrogen embrittlement under cyclic loads.Elsevier202620262025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/10259/11298reponame:Repositorio Institucional de la Universidad de Burgos (RIUBU)instname:Universidad de Burgos (UBU)InglésEngineering Failure Analysis. 2025, V. 180, p. 109882https://doi.org/10.1016/j.engfailanal.2025.109882Attribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:riubu.ubu.es:10259/112982026-05-28T07:56:11Z
dc.title.none.fl_str_mv Design and validation of an in-situ hydrogen embrittlement system in a rotary bending fatigue testing machine
title Design and validation of an in-situ hydrogen embrittlement system in a rotary bending fatigue testing machine
spellingShingle Design and validation of an in-situ hydrogen embrittlement system in a rotary bending fatigue testing machine
Calaf Chica, José
Rotary bending fatigue machine
Hydrogen
SPT
Embrittlement
Hidrógeno
Materiales-ensayos
Hydroge
Materials-Testing
title_short Design and validation of an in-situ hydrogen embrittlement system in a rotary bending fatigue testing machine
title_full Design and validation of an in-situ hydrogen embrittlement system in a rotary bending fatigue testing machine
title_fullStr Design and validation of an in-situ hydrogen embrittlement system in a rotary bending fatigue testing machine
title_full_unstemmed Design and validation of an in-situ hydrogen embrittlement system in a rotary bending fatigue testing machine
title_sort Design and validation of an in-situ hydrogen embrittlement system in a rotary bending fatigue testing machine
dc.creator.none.fl_str_mv Calaf Chica, José
Muñoz Manero, José E.
García Tárrago, María José
Preciado Calzada, Mónica
Bravo Díez, Pedro Miguel
author Calaf Chica, José
author_facet Calaf Chica, José
Muñoz Manero, José E.
García Tárrago, María José
Preciado Calzada, Mónica
Bravo Díez, Pedro Miguel
author_role author
author2 Muñoz Manero, José E.
García Tárrago, María José
Preciado Calzada, Mónica
Bravo Díez, Pedro Miguel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Rotary bending fatigue machine
Hydrogen
SPT
Embrittlement
Hidrógeno
Materiales-ensayos
Hydroge
Materials-Testing
topic Rotary bending fatigue machine
Hydrogen
SPT
Embrittlement
Hidrógeno
Materiales-ensayos
Hydroge
Materials-Testing
description Hydrogen is a promising clean energy source, but its integration brings challenges, notably hydrogen embrittlement (HE), which degrades materials used in hydrogen infrastructure. Metals, especially steel, are vulnerable, leading to reduced strength and safety risks. Testing methodologies, including in-situ and ex-situ methods, are crucial to understanding HE. Insitu methods simulate real-time exposure, whereas ex-situ methods focus on post-exposure effects. Rotary bending fatigue tests are particularly interesting as they are cost-effective fatigue machines. This study aims to design and implement an electrochemical cell for in-situ HE testing under cyclic loading in this particular fatigue machine. The study focuses on adapting an electrochemical cell for a rotary bending fatigue machine, testing 42CrMo4 steel. Three key tasks were performed: (i) determining electrochemical parameters for inducing HE through Small Punch Tests (SPTs), (ii) evaluating an electrolyte jet system’s effectiveness, and (iii) designing and validating the electrochemical cell. Electrolytes tested included acid and alkaline solutions, and a novel jetting system was devised to ensure electrolyte coverage during high-speed rotation. The system’s electrical configuration and the cell’s structural adaptations for in-situ hydrogen charging were critical design elements. The tests confirmed the system’s effectiveness in charging the specimen with hydrogen, as evidenced by fatigue life reduction and fracture surface analysis. Specimens precharged with hydrogen, specifically in acidic environments, displayed increased brittleness and premature failure, contrasting with the ductile behavior of non-embrittled specimens. This highlights the system’s potential for future studies on material resistance to hydrogen embrittlement under cyclic loads.
publishDate 2025
dc.date.none.fl_str_mv 2025
2026
2026
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/10259/11298
url https://hdl.handle.net/10259/11298
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Engineering Failure Analysis. 2025, V. 180, p. 109882
https://doi.org/10.1016/j.engfailanal.2025.109882
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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:Repositorio Institucional de la Universidad de Burgos (RIUBU)
instname:Universidad de Burgos (UBU)
instname_str Universidad de Burgos (UBU)
reponame_str Repositorio Institucional de la Universidad de Burgos (RIUBU)
collection Repositorio Institucional de la Universidad de Burgos (RIUBU)
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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