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dc.contributor.authorDíaz Portugal, Andrés 
dc.contributor.authorCuesta Segura, Isidoro Iván 
dc.contributor.authorMartínez Pañeda, Emilio
dc.contributor.authorAlegre Calderón, Jesús Manuel 
dc.date.accessioned2021-03-24T10:01:15Z
dc.date.available2021-03-24T10:01:15Z
dc.date.issued2020-09
dc.identifier.issn0360-3199
dc.identifier.urihttp://hdl.handle.net/10259/5662
dc.description.abstractFailures attributed to hydrogen embrittlement are a major concern for metals so a better understanding of damage micro-mechanisms and hydrogen diffusion within the metal is needed. Local concentrations depend on transport phenomena including trapping effects, which are usually characterised by a temperature-programmed desorption method often referred to as Thermal Desorption Analysis (TDA). When the hydrogen is released from the specimen during the programmed heating, some desorption peaks are observed that are commonly related to detrapping energies by means of an analytical procedure. The limitations of this approach are revisited here and gaseous hydrogen charging at high temperatures is simulated. This popular procedure enables attaining high concentrations due to the higher solubility of hydrogen at high temperatures. However, the segregation behaviour of hydrogen into traps depends on charging time and temperature. This process and the subsequent cooling alter hydrogen distribution are numerically modelled; it is found that TDA spectra are strongly affected by the charging temperature and the charging time, both for weak and strong traps. However, the influence of ageing time at room temperature after cooling and before desorption is only appreciable for weak traps.es
dc.description.sponsorshipMinistry of Economy and Competitiveness of Spain through grants MAT2014-58738 and RTI2018-096070-B-C33.es
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofInternational Journal of Hydrogen Energy. 2020, V. 45, n. 43, p. 23704-23720es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectHydrogen trappingen
dc.subjectThermal desorptionen
dc.subjectGaseous chargingen
dc.subjectFinite Element modellingen
dc.subject.otherResistencia de materiales
dc.subject.otherStrength of materialsen
dc.titleInfluence of charging conditions on simulated temperature-programmed desorption for hydrogen in metalsen
dc.typeinfo:eu-repo/semantics/article
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1016/j.ijhydene.2020.05.192
dc.identifier.doi10.1016/j.ijhydene.2020.05.192
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/MAT2014-58738
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/RTI2018-096070-B-C33
dc.journal.titleInternational Journal of Hydrogen Energyes
dc.volume.number45es
dc.issue.number43es
dc.page.initial23704es
dc.page.final23720es
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersion


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