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Improved accuracy of thermal desorption spectroscopy by specimen cooling during measurement of hydrogen concentration in a high-strength steel

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Fangnon, Eric
dc.contributor.author Malitckii, Evgenii
dc.contributor.author Yagodzinskyy, Yuriy
dc.contributor.author Vilaça, Pedro
dc.date.accessioned 2020-04-09T06:29:11Z
dc.date.available 2020-04-09T06:29:11Z
dc.date.issued 2020-03-10
dc.identifier.citation Fangnon , E , Malitckii , E , Yagodzinskyy , Y & Vilaça , P 2020 , ' Improved accuracy of thermal desorption spectroscopy by specimen cooling during measurement of hydrogen concentration in a high-strength steel ' , Materials , vol. 13 , no. 5 , 1252 . https://doi.org/10.3390/ma13051252 en
dc.identifier.issn 1996-1944
dc.identifier.other PURE UUID: 6c5719ee-9cac-4f3d-b01b-a817fb18c202
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/improved-accuracy-of-thermal-desorption-spectroscopy-by-specimen-cooling-during-measurement-of-hydrogen-concentration-in-a-highstrength-steel(6c5719ee-9cac-4f3d-b01b-a817fb18c202).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85082020218&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/41910437/ENG_Fangnon_et_al_Improved_Accuracy_of_Thermal_Materials.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/43746
dc.description.abstract Thermal desorption spectroscopy (TDS) is a powerful method for the measurement of hydrogen concentration in metallic materials. However, hydrogen loss from metallic samples during the preparation of the measurement poses a challenge to the accuracy of the results, especially in materials with high diffusivity of hydrogen, like ferritic and ferritic-martensitic steels. In the present paper, the effect of specimen cooling during the experimental procedure, as a tentative to reduce the loss of hydrogen during air-lock vacuum pumping for one high-strength steel of 1400 MPa, is evaluated. The results show, at room temperature, the presence of a continuous outward hydrogen flux accompanied with the redistribution of hydrogen within the measured steel during its exposure to the air-lock vacuum chamber under continuous pumping. Cooling of the steel samples to 213 K during pumping in the air-lock vacuum chamber before TDS measurement results in an increase in the measured total hydrogen concentration at about 14%. A significant reduction in hydrogen loss and redistribution within the steel sample improves the accuracy of hydrogen concentration measurement and trapping analysis in ferritic and martensitic steels. en
dc.format.extent 10
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher MDPI AG
dc.relation.ispartofseries Materials en
dc.relation.ispartofseries Volume 13, issue 5 en
dc.rights openAccess en
dc.title Improved accuracy of thermal desorption spectroscopy by specimen cooling during measurement of hydrogen concentration in a high-strength steel en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Advanced Manufacturing and Materials
dc.contributor.department Department of Mechanical Engineering en
dc.subject.keyword High-strength steel
dc.subject.keyword Hydrogen
dc.subject.keyword Hydrogen concentration
dc.subject.keyword Hydrogen loss
dc.subject.keyword Sample cooling
dc.subject.keyword Thermal desorption spectroscopy
dc.identifier.urn URN:NBN:fi:aalto-202004092782
dc.identifier.doi 10.3390/ma13051252
dc.type.version publishedVersion


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