dc.contributor.author | Wang, Dong | |
dc.contributor.author | Lu, Xu | |
dc.contributor.author | Deng, Yun | |
dc.contributor.author | Guo, Xiaofei | |
dc.contributor.author | Barnoush, Afrooz | |
dc.date.accessioned | 2019-03-20T07:30:07Z | |
dc.date.available | 2019-03-20T07:30:07Z | |
dc.date.created | 2019-01-11T10:21:51Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 1359-6454 | |
dc.identifier.uri | http://hdl.handle.net/11250/2590729 | |
dc.description.abstract | In-situ electrochemical nanoindentation was applied to study the effect of hydrogen on the mechanical properties of Fe-22Mn-0.6C TWIP steel at nanoscale. Distinctive behaviors in three defined grain orientations: (001), (101), and (111) were investigated in a sequence of air, hydrogen ingress, and hydrogen egress processes. The obvious pop-in load drop caused by introducing hydrogen was analyzed using the classical dislocation theory in combination with the “Defactant” model, wherein hydrogen-enhanced homogeneous dislocation nucleation through the reduction of dislocation line energy and stacking fault energy were proposed as the reasons. The dependence of pop-in behaviors on crystallographic orientations was also discussed. Tabor relation-based models were applied to analyze the nanohardness increment, which was related to the hydrogen-enhanced lattice friction and the hydrogen-reduced plastic zone size. The different recovery behaviors of pop-in load and nanohardness during hydrogen egress were assessed according to the different amounts of residual hydrogen in the corresponding affected zone. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Elsevier | nb_NO |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.title | Effect of hydrogen on nanomechanical properties in Fe-22Mn-0.6C TWIP steel revealed by in-situ electrochemical nanoindentation | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.volume | 166 | nb_NO |
dc.source.journal | Acta Materialia | nb_NO |
dc.identifier.doi | https://doi.org/10.1016/j.actamat.2018.12.055 | |
dc.identifier.cristin | 1654683 | |
dc.description.localcode | © 2019. This is the authors’ accepted and refereed manuscript to the article. Locked until 2.1.2021 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.unitcode | 194,64,92,0 | |
cristin.unitname | Institutt for maskinteknikk og produksjon | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 2 | |