INFLUENCE OF MICROSTRUCTURE ON TENSILE PROPERTIES OF DUAL PHASE STEEL

dc.contributor.authorSalamci, Elmas
dc.contributor.authorKabakci, Fikret
dc.date.accessioned2024-09-29T16:11:12Z
dc.date.available2024-09-29T16:11:12Z
dc.date.issued2011
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe influence of volume fraction of martensite and new ferrite on the tensile behaviour of dual-phase steel containing 0,0981% C, 1,653% Mn, 0,54% Si and 0,69% Ni has been studied. After intercritical annealing at 715, 725 and 752 degrees C, the specimens were cooled in water, oil and furnace. The formation of carbide was not observed in the optical microscope investigation even at furnace cooling rate. The results showed that after annealing at the same intercritical temperature, the highest volume fraction of martensite was obtained by water cooling among all cooling conditions. By increasing the martensite content, both yield and tensile strengths increased while uniform elongation was decreasing. It was observed that at constant volume fraction of martensite, new ferrite content was varied by using controlled cooling from intercritical annealing temperatures. The presence of new ferrite caused a decrease in strength and increase in ductility. Scanning electron microscope investigations of fracture surface showed that the specimens with new ferrite had higher densities of microvoids in the necked region and exhibited completely ductile type of fracture. In contary, it was also observed that the specimens with no new ferrite had lower densities of microvoids and exhibited mixed type of fracture which comprises both cleavage and ductile fracture together.en_US
dc.identifier.endpage272en_US
dc.identifier.issn1300-1884
dc.identifier.issue2en_US
dc.identifier.startpage263en_US
dc.identifier.urihttps://hdl.handle.net/20.500.14619/8239
dc.identifier.volume26en_US
dc.identifier.wosWOS:000292275800002en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isotren_US
dc.publisherGazi Univ, Fac Engineering Architectureen_US
dc.relation.ispartofJournal of the Faculty of Engineering and Architecture of Gazi Universityen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectEpitaxial ferriteen_US
dc.subjectmartensiteen_US
dc.subjectdual phase microstructureen_US
dc.subjecttensile propertiesen_US
dc.subjectfracture behaviouren_US
dc.titleINFLUENCE OF MICROSTRUCTURE ON TENSILE PROPERTIES OF DUAL PHASE STEELen_US
dc.typeArticleen_US

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