The effect of pure argon and mixed gases on microstructural and mechanical properties of S275 structural steel joined by flux-cored arc welding

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dc.contributor.authorÇevik, Bekir
dc.date.accessioned2020-04-30T23:33:07Z
dc.date.available2020-04-30T23:33:07Z
dc.date.issued2018
dc.departmentDÜ, Gümüşova Meslek Yüksekokulu, Makine ve Metal Teknolojileri Bölümüen_US
dc.descriptionWOS: 000433401500002en_US
dc.description.abstractStudies on the use of various welding methods and equipment (electrode, welding wire, welding powder, etc.) in welding of steels have intensively continued nowadays. Flux-cored arc welding technology is one of the welding methods which have mostly been investigated and applied to different metals in recent years. In this study, the effect of different shielding gases on microstructural and mechanical properties of S275 structural steel joined by flux-cored arc welding was examined. Pure argon (100% Ar) and a mixed gas (86% Ar, 12% CO2, 2% O-2) were used as shielding gas in welding processes. A double V groove of 50(degrees) was opened on steel sheets. Welding processes were performed horizontally by using a 1.2 mm-diameter rutile flux-cored wire. Tensile, hardness, and bending tests were used to determine mechanical properties of welded samples. In addition, metallographic examinations were performed to determine microstructural properties of weld zones. As a result of the tensile test, the highest mechanical properties were obtained from weld seams by the mixed gas. There were crack and rupture defects in weld zone as a result of bending tests. In all welding parameters, the hardness of weld metal was higher than that of the heat affected zone (HAZ) and base metal. The microstructure studies revealed that grain coarsening occurred in HAZ.en_US
dc.identifier.doi10.4149/km_2018_2_81en_US
dc.identifier.endpage87en_US
dc.identifier.issn0023-432X
dc.identifier.issn1338-4252
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage81en_US
dc.identifier.urihttps://doi.org/10.4149/km_2018_2_81
dc.identifier.urihttps://hdl.handle.net/20.500.12684/4898
dc.identifier.volume56en_US
dc.identifier.wosWOS:000433401500002en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherRedakcia Kovove Materialyen_US
dc.relation.ispartofKovove Materialy-Metallic Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectflux-cored arc weldingen_US
dc.subjectshielding gasen_US
dc.subjectargonen_US
dc.subjectmixed gasen_US
dc.subjectmechanical propertiesen_US
dc.titleThe effect of pure argon and mixed gases on microstructural and mechanical properties of S275 structural steel joined by flux-cored arc weldingen_US
dc.typeArticleen_US

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