Microstructure and Mechanical Properties of Al/Ti Dissimilar welded Joints Fabricated by Resistance Spot Welding with Process Tapes

Microstructure and Mechanical Properties of Al/Ti Dissimilar welded Joints Fabricated by Resistance Spot Welding with Process Tapes | 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 Microstructure and Mechanical Properties of Al/Ti Dissimilar welded Joints Fabricated by Resistance Spot Welding with Process Tapes Haohan Zhang, Yinyin Pei, Yuanxun Shen, Xiaoxue Ren, Tuanjie Han, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5895839/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 This study investigates the microstructure and mechanical properties of dissimilar metal joints between 6061 aluminum alloy and TC4 titanium alloy, fabricated using resistance spot welding with belt-assisted process. The influence of welding parameters, such as welding current, welding time, and electrode pressure, on the weld joint's morphology, nugget size, and fracture mode is systematically analyzed. The results show that the Al/Ti spot weld joints exhibit a typical fusion brazing characteristic, with TiAl 3 and Ti 2 Al 5 intermetallic compounds formed at the interface. Two fracture modes were observed: button fracture and interfacial fracture. The tensile shear force first increases and then decreases with increasing welding parameters, reaching a maximum of 7.02 kN. This study provides a theoretical foundation and technical support for the welding of thin-walled Al/Ti dissimilar metal structures. Resistance Spot welding Al/Ti dissimilar metals microstructure mechanical property Full Text 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. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-5895839","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":437055691,"identity":"e4570c71-2079-44a4-8772-be86f0e2513d","order_by":0,"name":"Haohan Zhang","email":"","orcid":"","institution":"Jilin University","correspondingAuthor":false,"prefix":"","firstName":"Haohan","middleName":"","lastName":"Zhang","suffix":""},{"id":437055692,"identity":"283e381f-a9a6-4009-9b4a-4d0d86126b33","order_by":1,"name":"Yinyin Pei","email":"","orcid":"","institution":"Zhengzhou Institute of 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property","lastPublishedDoi":"10.21203/rs.3.rs-5895839/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5895839/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThis study investigates the microstructure and mechanical properties of dissimilar metal joints between 6061 aluminum alloy and TC4 titanium alloy, fabricated using resistance spot welding with belt-assisted process. The influence of welding parameters, such as welding current, welding time, and electrode pressure, on the weld joint's morphology, nugget size, and fracture mode is systematically analyzed. The results show that the Al/Ti spot weld joints exhibit a typical fusion brazing characteristic, with TiAl\u003csub\u003e3\u003c/sub\u003e and Ti\u003csub\u003e2\u003c/sub\u003eAl\u003csub\u003e5\u003c/sub\u003e intermetallic compounds formed at the interface. Two fracture modes were observed: button fracture and interfacial fracture. The tensile shear force first increases and then decreases with increasing welding parameters, reaching a maximum of 7.02 kN. This study provides a theoretical foundation and technical support for the welding of thin-walled Al/Ti dissimilar metal structures.\u003c/p\u003e","manuscriptTitle":"Microstructure and Mechanical Properties of Al/Ti Dissimilar welded Joints Fabricated by Resistance Spot Welding with Process Tapes","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-04-22 16:10:14","doi":"10.21203/rs.3.rs-5895839/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":"a4d32eba-8bf1-4e7e-b07e-f1886ff9578f","owner":[],"postedDate":"April 22nd, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2025-06-22T05:54:51+00:00","versionOfRecord":[],"versionCreatedAt":"2025-04-22 16:10:14","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-5895839","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-5895839","identity":"rs-5895839","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}