Determining Hot Deformation Behavior and Rheology Laws of Selected Austenitic Stainless Steels

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dc.contributor.authorNěmec, Josefcs
dc.contributor.authorKunčická, Lenkacs
dc.contributor.authorOpěla, Petrcs
dc.contributor.authorDvořák, Karelcs
dc.coverage.issue11cs
dc.coverage.volume13cs
dc.date.issued2023-12-18cs
dc.description.abstractDue to their versatile properties, austenitic stainless steels have a wide application potential, including in specific fields, such as the nuclear power industry. ChN35VT steel is a chromium-nickel-tungsten type of steel stabilized by titanium, and it is suitable for parts subjected to considerable mechanical stress at elevated temperatures. However, the available data on its deformation behavior at elevated/high temperatures is scarce. The core of the presented research was thus the experimental characterization of the deformation behavior of the ChN35VT steel under hot conditions via the determination of flow stress curves, and their correlation with microstructure development. The obtained data was further compared with data acquired for 08Ch18N10T steel, which is also known for its applicability in the nuclear power industry. The experimental results were subsequently used to determine the Hensel-Spittel rheology laws for both the steels. The ChN35VT steel exhibited notably higher flow stress values in comparison with the 08Ch18N10T steel. This difference was more significant the lower the temperature and the higher the strain rate. Considering the peak stress values, the lowest difference was similar to 8 MPa (1250 degrees C and 0.01 s(-1)), and the highest was similar to 150 MPa (850 degrees C and 10 s(-1)). These findings also corresponded to the microstructure developments-the higher the deformation temperature, the more negligible the observed differences as regards the grain size and morphology.en
dc.formattextcs
dc.format.extent1-15cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMetals. 2023, vol. 13, issue 11, p. 1-15.en
dc.identifier.doi10.3390/met13111902cs
dc.identifier.issn2075-4701cs
dc.identifier.orcid0000-0002-4054-7049cs
dc.identifier.orcid0000-0003-2111-3357cs
dc.identifier.other186976cs
dc.identifier.researcheridC-6217-2019cs
dc.identifier.researcheridK-2385-2014cs
dc.identifier.scopus54992801300cs
dc.identifier.urihttp://hdl.handle.net/11012/245214
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMetalscs
dc.relation.urihttps://www.mdpi.com/2075-4701/13/11/1902cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2075-4701/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectaustenitic stainless steelen
dc.subjectdeformation behavioren
dc.subjectHensel-Spittelen
dc.subjectmicrostructureen
dc.titleDetermining Hot Deformation Behavior and Rheology Laws of Selected Austenitic Stainless Steelsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-186976en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:46:04en
sync.item.modts2025.01.17 16:50:23en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
thesis.grantorVysoké učení technické v Brně. . Vysoká škola báňská - Technická univerzita Ostravacs
thesis.grantorVysoké učení technické v Brně. . Ústav fyziky materiálů AV ČRcs
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