Investigation of Thermomechanical Processing of Nb Microalloyed Steel Produced by Powder Metallurgy

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dc.authoridGunduz, Suleyman/0000-0003-4285-5114
dc.contributor.authorTastemur, Demet
dc.contributor.authorGunduz, Suleyman
dc.contributor.authorErden, Mehmet Akif
dc.date.accessioned2024-09-29T16:08:16Z
dc.date.available2024-09-29T16:08:16Z
dc.date.issued2022
dc.departmentKarabük Üniversitesien_US
dc.description.abstractOne of the most important properties of microalloyed steels is the different microstructures which are obtained by changing the thermomechanical processing parameters and steel composition. The control of microstructure such as grain size, precipitates, dislocation structure and inclusions are highly effective to determine the mechanical properties of microalloyed steels. The strengthening of mechanical properties can be done by thermomechanical processesing due to increase of nucleation sides via maximizing the austenite boundary and density of the deformation band. In this study, the unalloyed steel and microalloyed steel containing 0.15% Nb were produced by powder metallurgy and hot deformed to reduce the thickness by 40% and 75%. EDX analyzes, density, hardness and grain size measurements were also performed on specimens. According to the SEM microstructure results, the grain size gradually decreased with respect to the deformation rate in both steels. It was observed that small grains occurred due to a complete recrystallization process at 75% deformation rate which were supported by grain size analysis. The density and hardness values increased by the increase in deformation rate. While the density and hardness of microalloy steel under sintered conditions was 89.46% and 75 Hv, respectively, 75% deformed condition was 98.51 % and 231 Hv.en_US
dc.description.sponsorshipScientific Research Projects Coordination Unit of Karab?k University [37]; [FDK-2020-2318]en_US
dc.description.sponsorshipThis paper was presented in ICMATSE 20 with ID number 37. This work was supported by Scientific Research Projects Coordination Unit of Karab?k University. Project Number: FDK-2020-2318.en_US
dc.identifier.doi10.35378/gujs.835371
dc.identifier.endpage616en_US
dc.identifier.issn2147-1762
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85131859796en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage606en_US
dc.identifier.trdizinid1138422en_US
dc.identifier.urihttps://doi.org/10.35378/gujs.835371
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1138422
dc.identifier.urihttps://hdl.handle.net/20.500.14619/7451
dc.identifier.volume35en_US
dc.identifier.wosWOS:000821361100018en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.publisherGazi Univen_US
dc.relation.ispartofGazi University Journal of Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMicroalloyed steelen_US
dc.subjectPowder metallurgyen_US
dc.subjectThermomechanicalen_US
dc.subjectProcessingen_US
dc.subjectMechanical propertiesen_US
dc.titleInvestigation of Thermomechanical Processing of Nb Microalloyed Steel Produced by Powder Metallurgyen_US
dc.typeArticleen_US

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