Effects of Short-Time Austenitization on Mechanical Properties and Transformation-Induced Plasticity in Alloyed Austempered Ductile Iron

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dc.contributor.authorNalcaci, Burak
dc.contributor.authorSahin, Omer
dc.contributor.authorOkur, Onur
dc.contributor.authorAydin, Murat
dc.contributor.authorErdogan, Mehmet
dc.date.accessioned2025-01-21T16:27:31Z
dc.date.available2025-01-21T16:27:31Z
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–Mo-alloyed ductile iron (DI) were poured into sand molds and subsequently the DI samples were austenitized at 850 °C for the duration of 15–30–60 min followed by holding in a salt bath at an austempering temperature of 260 °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. Graphical Abstract: [Figure not available: see fulltext.] © 2021, American Foundry Society.
dc.description.sponsorshipESTAS Camshaft Company; Gazi University Scientific Re-search Fund, (GÜBAP 07/2019-19); Gazi University Scientific Research Fund, (07/2019-19)
dc.identifier.doi10.1007/s40962-021-00723-3
dc.identifier.endpage1848
dc.identifier.issn1939-5981
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85120347983
dc.identifier.scopusqualityQ2
dc.identifier.startpage1836
dc.identifier.urihttps://doi.org/10.1007/s40962-021-00723-3
dc.identifier.urihttps://hdl.handle.net/20.500.12587/23342
dc.identifier.volume16
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Science and Business Media Deutschland GmbH
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); mechanical properties; short-time austenitization; 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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