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dc.contributor.authorHusby, Hans
dc.contributor.authorIannuzzi, Mariano
dc.contributor.authorJohnsen, Roy
dc.contributor.authorMariano, Kappes
dc.contributor.authorBarnoush, Afrooz
dc.date.accessioned2019-07-09T06:46:06Z
dc.date.available2019-07-09T06:46:06Z
dc.date.created2018-06-05T19:52:25Z
dc.date.issued2018
dc.identifier.citationInternational journal of hydrogen energy. 2018, 43 (7), 3845-3861.nb_NO
dc.identifier.issn0360-3199
dc.identifier.urihttp://hdl.handle.net/11250/2603805
dc.description.abstractNickel offers several beneficial effects as an alloying element to low alloy steels. However, it is, in the oil and gas industry, limited by part 2 of the ISO 15156 standard to a maximum of 1 wt% due to sulfide stress cracking resistance concerns. Hydrogen uptake, diffusion, and trapping were investigated in research-grade ferritic/ pearlitic low alloy steels with Ni contents of 0, 1, 2 and 3 wt% by the electrochemical permeation method as a function of temperature and hydrogen charging conditions. Qualitatively, the effective diffusion coefficient, Deff, decreased with increasing Ni content. The sub-surface lattice hydrogen concentration, C0, decreased with increasing Ni content in all charging conditions while the trend between the sub-surface hydrogen concentration in lattice and reversible trap sites, COR, and Ni content varied with the charging conditions. Irreversible trapping, evaluated by consecutive charging transients, was not observed for any of the materials. Lastly, the possible influence of an increasing fraction of pearlite with increasing Ni content is discussed.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.titleEffect of nickel on hydrogen permeation in ferritic/ pearlitic low alloy steelsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber3845-3861nb_NO
dc.source.volume43nb_NO
dc.source.journalInternational journal of hydrogen energynb_NO
dc.source.issue7nb_NO
dc.identifier.doi10.1016/j.ijhydene.2017.12.174
dc.identifier.cristin1589267
dc.relation.projectAndre: NTNU and General Electric (GE) Oil & Gasnb_NO
dc.description.localcodeThis article will not be available due to copyright restrictions (c) 2018 by Elseviernb_NO
cristin.unitcode194,64,92,0
cristin.unitnameInstitutt for maskinteknikk og produksjon
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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