Effect of Different Bending Angles on the Microstructure and Texture Evolution of AZ31 Magnesium Alloy at High Temperature

Effect of Different Bending Angles on the Microstructure and Texture Evolution of AZ31 Magnesium Alloy at High Temperature | 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 Research Article Effect of Different Bending Angles on the Microstructure and Texture Evolution of AZ31 Magnesium Alloy at High Temperature Rongjun Wang, Pengcheng Ji, Can Chen, Pengchong Zhang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8258394/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract To investigate the microstructure and texture evolution of AZ31 magnesium alloy under different bending angles at high temperature, OM and EBSD were used to systematically analyze the inner and outer microstructures under bending angles of 150°, 120°, and 90°. The results show that twinning on the inner side is more pronounced at high temperature. As the bending angle decreases, the number of DRX grains increases and their distribution becomes more uniform. Texture evolution exhibits asymmetry: inner orientations rotate toward RD and weaken with decreasing angle, while the outer side maintains a strong basal texture along ND, slightly weakening only under 90° large strain. Grain evolution progresses from the coexistence of SRX and early DRX, to extensive subgrain formation, and finally to full DRX development. The outer side stores more deformation energy through dislocation pile-up and subgrain formation, whereas the inner side more readily transforms LAGBs into HAGBs via DRX and twinning, leading to more pronounced local strain inhomogeneity and hardening on the outer side. The evolution of grain orientation keeps basal slip dominant; with decreasing bending angle, prismatic slip on the inner side becomes more favorable, while the favorability of pyramidal slip slightly decreases. magnesium alloy high-temperature bending recrystallization asymmetry texture evolution microstructure Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted 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. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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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-8258394","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":559916482,"identity":"8062130c-4648-4115-85d0-154046622ea6","order_by":0,"name":"Rongjun Wang","email":"","orcid":"","institution":"Taiyuan University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Rongjun","middleName":"","lastName":"Wang","suffix":""},{"id":559916483,"identity":"ca2adc2b-952d-43b3-ad0d-b9600ee4c169","order_by":1,"name":"Pengcheng Ji","email":"","orcid":"","institution":"Taiyuan University of Science and 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Temperature","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"magnesium alloy, high-temperature bending, recrystallization asymmetry, texture evolution, microstructure","lastPublishedDoi":"10.21203/rs.3.rs-8258394/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8258394/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eTo investigate the microstructure and texture evolution of AZ31 magnesium alloy under different bending angles at high temperature, OM and EBSD were used to systematically analyze the inner and outer microstructures under bending angles of 150\u0026deg;, 120\u0026deg;, and 90\u0026deg;. The results show that twinning on the inner side is more pronounced at high temperature. As the bending angle decreases, the number of DRX grains increases and their distribution becomes more uniform. Texture evolution exhibits asymmetry: inner orientations rotate toward RD and weaken with decreasing angle, while the outer side maintains a strong basal texture along ND, slightly weakening only under 90\u0026deg; large strain. Grain evolution progresses from the coexistence of SRX and early DRX, to extensive subgrain formation, and finally to full DRX development. The outer side stores more deformation energy through dislocation pile-up and subgrain formation, whereas the inner side more readily transforms LAGBs into HAGBs via DRX and twinning, leading to more pronounced local strain inhomogeneity and hardening on the outer side. The evolution of grain orientation keeps basal slip dominant; with decreasing bending angle, prismatic slip on the inner side becomes more favorable, while the favorability of pyramidal slip slightly decreases.\u003c/p\u003e","manuscriptTitle":"Effect of Different Bending Angles on the Microstructure and Texture Evolution of AZ31 Magnesium Alloy at High Temperature","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-12-17 11:23:55","doi":"10.21203/rs.3.rs-8258394/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"4f94d7e6-5f3c-4f0f-9afa-699ee73384f4","owner":[],"postedDate":"December 17th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-01-06T11:24:40+00:00","versionOfRecord":[],"versionCreatedAt":"2025-12-17 11:23:55","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8258394","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8258394","identity":"rs-8258394","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}