EFFECTS OF SHORT-TIME AUSTENITIZATION ON MECHANICAL PROPERTIES AND TRANSFORMATION-INDUCED PLASTICITY IN ALLOYED AUSTEMPERED DUCTILE IRON

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dc.authoridOkur, Onur/0000-0002-8290-0680
dc.authoridSAHIN, OMER/0000-0002-2446-2512
dc.authoridAYDIN, Murat/0000-0002-2807-9713
dc.contributor.authorNalcaci, Burak
dc.contributor.authorSahin, Omer
dc.contributor.authorErdogan, Mehmet
dc.contributor.authorOkur, Onur
dc.contributor.authorAydin, Murat
dc.date.accessioned2025-01-21T16:38:21Z
dc.date.available2025-01-21T16:38:21Z
dc.date.issued2022
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThe present study was performed to investigate the influences of short-time austenitization on mechanical properties and transformation-induced plasticity (TRIP) in austempered ductile iron. For this purpose, Cu-Ni-Moalloyed ductile iron (DI) were poured into sand molds and subsequently the DI samples were austenitized at 850 degrees C for the duration of 15-30-60 min followed by holding in a salt bath at an austempering temperature of 260 degrees C for 90 min. Characterization studies were carried out with dilatometer, image analyses software, tensile test, hardness test, XRD analysis, optical and scanning electron microscopies. Findings revealed that as the austenitization time increased, carbon content of austenite (total of high carbon and blocky) and bainitic ferrite cell size enhanced, and phase volume fractions of transformation products of austenite changed. Within this context, changes in the mechanical properties were discussed. Optimum combination of strength and ductility and maximum TRIP effect were determined in the shortest (15 min)-austenitized sample. Accordingly, it was determined 15 min austenitization led to progression in the mechanical properties as 146 MPa and 2.8 % increment in the tensile strength and total elongation respectively, compared to 45 min austenitized sample. [GRAPHICS] .
dc.description.sponsorshipGazi University Scientific Research Fund [07/2019-19]
dc.description.sponsorshipThis work was supported by Gazi University Scientific Research Fund (Grant No.: 07/2019-19).
dc.identifier.doi10.1007/s40962-021-00723-3
dc.identifier.endpage1848
dc.identifier.issn1939-5981
dc.identifier.issn2163-3193
dc.identifier.issue4
dc.identifier.startpage1836
dc.identifier.urihttps://doi.org/10.1007/s40962-021-00723-3
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24647
dc.identifier.volume16
dc.identifier.wosWOS:000724673400001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherSpringer Int Publ Ag
dc.relation.ispartofInternational Journal of Metalcasting
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241229
dc.subjectaustempered ductile iron (ADI); short-time austenitization; mechanical properties; transformation-induced plasticity (TRIP)
dc.titleEFFECTS OF SHORT-TIME AUSTENITIZATION ON MECHANICAL PROPERTIES AND TRANSFORMATION-INDUCED PLASTICITY IN ALLOYED AUSTEMPERED DUCTILE IRON
dc.typeArticle

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