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dc.contributor.authorWan, Di
dc.contributor.authorAlvaro, Antonio
dc.contributor.authorOlden, Vigdis
dc.contributor.authorBarnoush, Afrooz
dc.date.accessioned2019-04-24T14:32:23Z
dc.date.available2019-04-24T14:32:23Z
dc.date.created2019-01-06T21:53:19Z
dc.date.issued2019
dc.identifier.citationInternational journal of hydrogen energy. 2019, 44 (10), 5030-5042.nb_NO
dc.identifier.issn0360-3199
dc.identifier.urihttp://hdl.handle.net/11250/2595316
dc.description.abstractThe effect of hydrogen (H) on the fatigue behavior is of significant importance for metallic structures. In this study, the hydrogen-enhanced fatigue crack growth rate (FCGR) tests on in-situ electrochemically H-charged ferritic Fe-3wt%Si steel with coarse grain size were conducted. Results showed strong difference between the H-charged and the non-charged conditions (reference test in laboratory air) and were in good agreement with the results from literature. With H-charging, the fracture morphology changed from transgranular (TG) type to “quasi-cleavage” (“QC”), with a different fraction depending on the loading frequency. With the help of electron channeling contrast imaging (ECCI) inside a scanning electron microscope (SEM), a relatively large area in the failed bulk specimen could be easily observed with high-resolution down to dislocation level. In this work, the dislocation sub-structure immediately under the fracture surfaces were investigated by ECCI to depict the difference in the plasticity evolution during fatigue crack growth (FCG). Based on the analysis, the H-enhanced FCG mechanisms were discussed.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleHydrogen-enhanced fatigue crack growth behaviors in a ferritic Fe-3wt%Si steel studied by fractography and dislocation structure analysisnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber5030-5042nb_NO
dc.source.volume44nb_NO
dc.source.journalInternational journal of hydrogen energynb_NO
dc.source.issue10nb_NO
dc.identifier.doi10.1016/j.ijhydene.2018.12.190
dc.identifier.cristin1651133
dc.relation.projectNorges forskningsråd: 521672nb_NO
dc.relation.projectNorges forskningsråd: 244068/E30nb_NO
dc.description.localcode© 2019. This is the authors’ accepted and refereed manuscript to the article. Locked until 18.1.2021 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/nb_NO
cristin.unitcode194,64,92,0
cristin.unitnameInstitutt for maskinteknikk og produksjon
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.fulltextpostprint
cristin.qualitycode2


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal