The effect of heat input in multi-pass GMAW of S960QL UHSS based on weaving and stringer bead procedure on microstructure and mechanical properties of HAZ

Basit Öğe Kaydı
dc.authoridGürol, Uğur/0000-0002-3205-7226
dc.authoridTUMER, MUSTAFA/0000-0002-1931-4750
dc.authoridMert, Tolga/0000-0003-2407-3426
dc.authorwosidGürol, Uğur/AAN-1097-2021
dc.authorwosidTUMER, MUSTAFA/F-7418-2018
dc.contributor.authorMert, Tolga
dc.contributor.authorGurol, Ugur
dc.contributor.authorTumer, Mustafa
dc.date.accessioned2024-06-13T20:18:14Z
dc.date.available2024-06-13T20:18:14Z
dc.date.issued2023
dc.departmentİstanbul Gedik Üniversitesien_US
dc.description.abstractQuenched and tempered S960QL (yield strength & GE; 960 MPa) ultra-high strength steel (UHSS) thick plates were joined by multi-pass robotic gas metal arc welding (GMAW) using weaving and stringer bead techniques. The effects of microstructural changes in heat-affected zone (HAZ) of the joint on toughness and hardness were examined. Weaving and stringer bead techniques applied for the multi-pass welding procedure altered average peak temperatures and exposure time to those temperatures. Mechanical properties of HAZs were evaluated by utilizing notch impact and hardness tests, and these results were correlated with microstructural characterizations using optical (OM) and scanning electron microscopes (SEM). Prior austenite grain (PAG) coarsening occurred because of increased exposure time to peak temperature in coarse-grained HAZ (CGHAZ) of the W-5 (weaving pass) joint. CGHAZs at the face pass, which have not been subjected to a second thermal cycle, have the highest hardness in both joints. Hardness of SCHAZ and CGHAZ of S-12 joint was 7% and 1% higher compared with W-5 joint, respectively. Weld metal hardness of W-5 joint was 15% lower than that of S-12 joint. Both joints not only fulfilled the requirements of minimum 50 J per EN ISO 10025-6 at -20 & DEG;C but exceeded this limit by 50% (W-5) and 200% (S-12). Lateral expansions for impact toughness specimens were around 17.5% for S-12 joint, whereas it was 4% for W-5 joint. Since HAZ in the S-12 (stringer bead) joint is narrow compared with the one in the W-5 joint, impact toughness values were higher with the S-12 joint due to the locations of the notches of the impact specimens.en_US
dc.description.sponsorshipYildiz Technical University Scientific Research Projects Coordination Unit [FBA-2018-3225]en_US
dc.description.sponsorshipAcknowledgmentsThe authors would like to thank Gedik Welding for supporting robotic welding. The authors received financial support for this research from Yildiz Technical University Scientific Research Projects Coordination Unit with Project No: FBA-2018-3225.en_US
dc.identifier.doi10.1088/2053-1591/aceded
dc.identifier.issn2053-1591
dc.identifier.issue8en_US
dc.identifier.scopus2-s2.0-85169698115en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1088/2053-1591/aceded
dc.identifier.urihttps://hdl.handle.net/11501/1266
dc.identifier.volume10en_US
dc.identifier.wosWOS:001049669600001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIop Publishing Ltden_US
dc.relation.ispartofMaterials Research Expressen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectS960qlen_US
dc.subjectGmawen_US
dc.subjectWeavingen_US
dc.subjectStringer Passen_US
dc.subjectHazen_US
dc.subjectMechanical Propertiesen_US
dc.subjectMicrostructureen_US
dc.subjectMartensite-Austenite Constituenten_US
dc.subjectAffected Zone Hazen_US
dc.subjectCrack Initiationen_US
dc.subjectStrengthen_US
dc.subjectSteelen_US
dc.subjectToughnessen_US
dc.subjectPropagationen_US
dc.titleThe effect of heat input in multi-pass GMAW of S960QL UHSS based on weaving and stringer bead procedure on microstructure and mechanical properties of HAZen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu