Investigations on the microstructure and mechanical properties of laser welded dissimilar galvanized steel-aluminum joints

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dc.authorid0000-0003-1387-907Xen_US
dc.contributor.authorYüce, Celalettin
dc.contributor.authorKarpat, Fatih
dc.contributor.authorYavuz, Nurettin
dc.date.accessioned2021-03-20T20:12:28Z
dc.date.available2021-03-20T20:12:28Z
dc.date.issued2019
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Mekatronik Mühendisliği Bölümüen_US
dc.description.abstractIn this study, galvanized high-strength steel and aluminum alloy sheets were laser-welded in zero-gap lap joint configuration. In order to determine the influences of the heat input levels, microstructural and mechanical properties of the joints were investigated. The weld bead geometry, microstructure, and intermetallic phases at the interface of welded joints were investigated using an optical microscope and scanning electron microscopy (SEM) with energy-dispersive spectroscopy (EDS) at different heat input levels. Mechanical properties and microhardness distribution of the welded joints were examined according to the weld bead dimension. The results revealed that there is a correlation between the weld seam geometry and intermetallic phase formation. At relatively high heat input level, the penetration depth increased, and thick Al-rich intermetallic layer was observed at the interface of the weld seam, which deteriorated the tensile strength of the joint. It has been found that without the need for any additional precaution, the thickness of the IMC layer can be limited to 5-15 mu m when the optimum welding parameters were conducted. The experimental results showed that with limited heat input and penetration depths, up to 108.7-N/mm tensile strength could be achieved and fracture initiated at the weld seam-steel interface.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK); BIDEB 2211-A National Scholarship Programmeen_US
dc.description.sponsorshipThe authors acknowledge the Scientific and Technological Research Council of Turkey (TUBITAK) for the support by BIDEB 2211-A National Scholarship Programme for supporting this research. And a part of this research was supported by the IPG Photonics Eurasia at Istanbul, Turkey.en_US
dc.identifier.doi10.1007/s00170-019-04154-7en_US
dc.identifier.endpage2704en_US
dc.identifier.issn0268-3768
dc.identifier.issn1433-3015
dc.identifier.issue5-8en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage2693en_US
dc.identifier.urihttp://doi.org/10.1007/s00170-019-04154-7
dc.identifier.urihttps://hdl.handle.net/20.500.12885/577
dc.identifier.volume104en_US
dc.identifier.wosWOS:000490367800066en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorYüce, Celalettin
dc.language.isoenen_US
dc.publisherSpringer London Ltden_US
dc.relation.ispartofInternational Journal Of Advanced Manufacturing Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLaser weldingen_US
dc.subjectSteel-aluminumen_US
dc.subjectIntermetallic layeren_US
dc.subjectMechanical propertiesen_US
dc.titleInvestigations on the microstructure and mechanical properties of laser welded dissimilar galvanized steel-aluminum jointsen_US
dc.typeArticleen_US

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