dc.contributor.author | Wang, Dong | |
dc.contributor.author | Lu, Xu | |
dc.contributor.author | Lin, Meichao | |
dc.contributor.author | Wan, Di | |
dc.contributor.author | Li, Zhiming | |
dc.contributor.author | He, Jianying | |
dc.contributor.author | Johnsen, Roy | |
dc.date.accessioned | 2021-09-10T06:54:26Z | |
dc.date.available | 2021-09-10T06:54:26Z | |
dc.date.created | 2021-04-26T13:50:10Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 1005-0302 | |
dc.identifier.uri | https://hdl.handle.net/11250/2775092 | |
dc.description.abstract | The variations in the pop-in behavior of an equiatomic CoCrFeMnNi high-entropy alloy under different hydrogen charging/discharging conditions were characterized via in-situ electrochemical nanoindentation. Results show that hydrogen accumulatively reduces both pop-in load and width, among which the reduction of pop-in width is more noticeable than that of pop-in load. Moreover, the hydrogen reduction effect on both pop-in load and width is reversible when hydrogen is degassed during anodic discharging process. Particularly, the hydrogen-reduced pop-in width was studied in detail by a comprehensive energy balance model. It is quantitatively shown that the dissolved hydrogen enhances lattice friction, leading to an increased resistance to dislocation motion. As a result, fewer dislocations can be generated with a higher hydrogen concentration, causing a smaller pop-in width. This is the first time that the pop-in width indicated dislocation mobility under hydrogen impact is quantitively revealed. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.title | Understanding the hydrogen effect on pop-in behavior of an equiatomic high-entropy alloy during in-situ nanoindentation | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | acceptedVersion | en_US |
dc.source.journal | Journal of Materials Science & Technology | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/j.jmst.2021.04.060 | |
dc.identifier.cristin | 1906438 | |
dc.relation.project | Norges forskningsråd: 294739 | en_US |
dc.relation.project | Norges forskningsråd: 294689 | en_US |
dc.description.localcode | "© 2021. This is the authors’ accepted and refereed manuscript to the article. Locked until 7.7.2023 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/ " | en_US |
cristin.ispublished | false | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |