“Regeneration-Repair-Strengthening” mechanism in the oxidation film damage region of copper-nickel alloys under magnetic field effects

“Regeneration-Repair-Strengthening” mechanism in the oxidation film damage region of copper-nickel alloys under magnetic field effects | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article “Regeneration-Repair-Strengthening” mechanism in the oxidation film damage region of copper-nickel alloys under magnetic field effects Ke Gong, Jiamu Wang, Xiuqi Hu, Mingsi Yang, Yuanming Wang, Feixiong Mao This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5836111/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 16 Dec, 2025 Read the published version in Nature Communications → Version 1 posted You are reading this latest preprint version Abstract Copper-nickel alloy pipes in marine environments are prone to scouring by solid particles, which disrupt the bilayer oxidation film and induce scratches. These scratched regions are more vulnerable to perforation, potentially leading to premature pipe failure. Thus, rapidly repairing the film and restoring its corrosion resistance is a major challenge. This study simulates the "film damage-regeneration" process of copper-nickel alloys in marine environments, researching the regeneration of the film in scratched regions of a 70/30 Cu-Ni alloy in a 3.5 wt% NaCl solution, under both non-magnetic and magnetic field conditions. The results demonstrate that the application of a magnetic field accelerates the regeneration of the film and, through synergistic interactions with the scratched microregions, alters the local pH conditions, suppresses the re-deposition of CuO, and significantly enhances the enrichment of NiO on the surface of the regenerated film. Ultimately, a unique single-layer film structure with enhanced corrosion resistance is formed. Notably, this single-layer film structure represents the first reported observation in copper-nickel alloy studies. This work offers a novel approach for in-situ copper-nickel alloy pipeline's film repair, with significant implications for extending the lifespan of marine engineering infrastructures. Physical sciences/Chemistry/Electrochemistry/Corrosion Physical sciences/Materials science Full Text Additional Declarations There is NO Competing Interest. Supplementary Files Supplementaryinformation.pdf Additional information on the manuscript Cite Share Download PDF Status: Published Journal Publication published 16 Dec, 2025 Read the published version in Nature Communications → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-5836111","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":409151458,"identity":"dddddec7-ba7a-4eaf-9120-cbebfda3a438","order_by":0,"name":"Ke 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These scratched regions are more vulnerable to perforation, potentially leading to premature pipe failure. Thus, rapidly repairing the film and restoring its corrosion resistance is a major challenge. This study simulates the \"film damage-regeneration\" process of copper-nickel alloys in marine environments, researching the regeneration of the film in scratched regions of a 70/30 Cu-Ni alloy in a 3.5 wt% NaCl solution, under both non-magnetic and magnetic field conditions. The results demonstrate that the application of a magnetic field accelerates the regeneration of the film and, through synergistic interactions with the scratched microregions, alters the local pH conditions, suppresses the re-deposition of Cu\u003c2/sup\u003eO, and significantly enhances the enrichment of NiO on the surface of the regenerated film. Ultimately, a unique single-layer film structure with enhanced corrosion resistance is formed. Notably, this single-layer film structure represents the first reported observation in copper-nickel alloy studies. This work offers a novel approach for in-situ copper-nickel alloy pipeline's film repair, with significant implications for extending the lifespan of marine engineering infrastructures.","manuscriptTitle":"“Regeneration-Repair-Strengthening” mechanism in the oxidation film damage region of copper-nickel alloys under magnetic field effects","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-01-31 02:11:11","doi":"10.21203/rs.3.rs-5836111/v1","editorialEvents":[],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"nature-communications","isNatureJournal":true,"hasQc":false,"allowDirectSubmit":false,"externalIdentity":"NCOMMS","sideBox":"Learn more about [Nature Communications](http://www.nature.com/ncomms/)","snPcode":"","submissionUrl":"https://mts-ncomms.nature.com/","title":"Nature Communications","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"ejp","reportingPortfolio":"Nature Communications","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"2cb4159e-d3c2-4b95-a5b1-930cc2301f97","owner":[],"postedDate":"January 31st, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[{"id":43629310,"name":"Physical sciences/Chemistry/Electrochemistry/Corrosion"},{"id":43629311,"name":"Physical sciences/Materials science"}],"tags":[],"updatedAt":"2025-12-25T08:05:41+00:00","versionOfRecord":{"articleIdentity":"rs-5836111","link":"https://doi.org/10.1038/s41467-025-66216-7","journal":{"identity":"nature-communications","isVorOnly":false,"title":"Nature Communications"},"publishedOn":"2025-12-16 05:00:00","publishedOnDateReadable":"December 16th, 2025"},"versionCreatedAt":"2025-01-31 02:11:11","video":"","vorDoi":"10.1038/s41467-025-66216-7","vorDoiUrl":"https://doi.org/10.1038/s41467-025-66216-7","workflowStages":[]},"version":"v1","identity":"rs-5836111","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-5836111","identity":"rs-5836111","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}