MICROSTRUCTURE AND MECHANICAL PROPERTIES OF DISSIMILAR RESISTANCE SPOT WELDED ZN-COATED DP800-TBF1180 AUTOMOTIVE STEELS USING MFDC TECHNOLOGY

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dc.authoridBaser, Tanya Aycan/0000-0003-2303-4169
dc.contributor.authorHidiroglu, M.
dc.contributor.authorBaser, T. A.
dc.contributor.authorKahraman, N.
dc.date.accessioned2024-09-29T16:07:45Z
dc.date.available2024-09-29T16:07:45Z
dc.date.issued2024
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe use of advanced high-strength steel in the automotive industry is increasing in last decade. This is due to the restrictions to reduce fuel consumption and thereby decrease harmful carbon dioxide emissions. This paper aims to investigate welding properties of dissimilar resistance spot welded hot dip galvanized DP800-TBF1180 automotive steels using MFDC (Mid Frequency Direct Current) technology. LME crack occurrence due to the zinc coating was determined by magnetic particle test. The mechanical properties of welded joints were determined by tensile-shear, cross-tension and hardness measurements. The micro structural characterization was also performed in the weld zones of the joints. The appropriate welding parameter range were selected for welding processes by MFDC technology. Therefore, LME crack formation were not observed according to magnetic particle test. The highest strength was obtained as 17.60 kN and 5.51 kN by tensile-shear and cross tension tests, respectively with a welding current of 8 kA. In addition, a soft zone was found in the HAZ for both base metals. The hardness decrease in HAZ is more pronounced on the TBF1180 side. The soft zone hardness values of the sample S4 were approximately 330 HV, and the hardness values of the base material were measured in the range of 376-386 HV.en_US
dc.identifier.doi10.24425/amm.2024.149793
dc.identifier.endpage651en_US
dc.identifier.issn1733-3490
dc.identifier.issn2300-1909
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85197627291en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.startpage639en_US
dc.identifier.urihttps://doi.org/10.24425/amm.2024.149793
dc.identifier.urihttps://hdl.handle.net/20.500.14619/7134
dc.identifier.volume69en_US
dc.identifier.wosWOS:001296371200040en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPolska Akad Nauk, Polish Acad Sciences, Inst Metall & Mater Sci Pasen_US
dc.relation.ispartofArchives of Metallurgy and Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectDP800 steelen_US
dc.subjectTBF 1180 steelen_US
dc.subjectMFDCen_US
dc.subjectresistance spot weldingen_US
dc.subjectwelding currenten_US
dc.subjectliquid metal embrittlementen_US
dc.titleMICROSTRUCTURE AND MECHANICAL PROPERTIES OF DISSIMILAR RESISTANCE SPOT WELDED ZN-COATED DP800-TBF1180 AUTOMOTIVE STEELS USING MFDC TECHNOLOGYen_US
dc.typeArticleen_US

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