2026-04-28T06:14:20Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/56622022-09-02T22:42:07Zcom_10259_4201com_10259_5086com_10259_2604col_10259_4505

Díaz Portugal, Andrés 147 500 Cuesta Segura, Isidoro Iván 135 500 Martínez Pañeda, Emilio 0e268b17-776b-4013-868b-7f8417bf1088 500 Alegre Calderón, Jesús Manuel 16 500 2021-03-24T10:01:15Z 2021-03-24T10:01:15Z 2020-09 0360-3199 http://hdl.handle.net/10259/5662 10.1016/j.ijhydene.2020.05.192 Failures 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. Ministry of Economy and Competitiveness of Spain through grants MAT2014-58738 and RTI2018-096070-B-C33. application/pdf eng Elsevier International Journal of Hydrogen Energy. 2020, V. 45, n. 43, p. 23704-23720 https://doi.org/10.1016/j.ijhydene.2020.05.192 info:eu-repo/grantAgreement/MINECO/MAT2014-58738 info:eu-repo/grantAgreement/MINECO/RTI2018-096070-B-C33 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Hydrogen trapping Thermal desorption Gaseous charging Finite Element modelling Resistencia de materiales Strength of materials Influence of charging conditions on simulated temperature-programmed desorption for hydrogen in metals info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion International Journal of Hydrogen Energy 45 43 23704 23720 TEXT Diaz-ijhe_2020.pdf.txt Diaz-ijhe_2020.pdf.txt Extracted text text/plain 0 https://riubu.ubu.es/bitstream/10259/5662/5/Diaz-ijhe_2020.pdf.txt d41d8cd98f00b204e9800998ecf8427e MD5 5 THUMBNAIL Diaz-ijhe_2020.pdf.jpg Diaz-ijhe_2020.pdf.jpg IM Thumbnail image/jpeg 3330 https://riubu.ubu.es/bitstream/10259/5662/4/Diaz-ijhe_2020.pdf.jpg f0feb489acc193de7e9b59823841d52b MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/5662/3/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/5662/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Diaz-ijhe_2020.pdf Diaz-ijhe_2020.pdf application/pdf 6368883 https://riubu.ubu.es/bitstream/10259/5662/1/Diaz-ijhe_2020.pdf 6de56f2520149874bde74b8ea2c7fa7b MD5 1 10259/5662 oai:riubu.ubu.es:10259/5662 2022-09-03 00:42:07.427 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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