Mechanical properties of vanadium-alloyed austempered ductile iron for crankshaft applications

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dc.authoridVatan, Suleyman Batuhan/0000-0001-8095-1612
dc.contributor.authorBayata, Fatma
dc.contributor.authorVatan, Sueleyman Batuhan
dc.date.accessioned2024-07-18T20:42:19Z
dc.date.available2024-07-18T20:42:19Z
dc.date.issued2023
dc.departmentİstanbul Bilgi Üniversitesien_US
dc.description.abstractThis study focused on the development of austempered ductile iron (ADI) with desirable combination of mechanical properties for crankshaft applications by the combined effect of vanadium (V) alloying and an optimized heat treatment process. The produced unalloyed GGG60, 0.15% V-alloyed GGG60 (V-15), and 0.30% V-alloyed GGG60 samples were subjected to austenitizing at 900 & DEG;C for 1 h and subsequent austempering processes at 250, 300, and 350 & DEG;C for 15, 30, 60, 90, and 180 min. As a result of these austempering processes, different bainitic structures were obtained, which led to the formation of diverse combinations of mechanical properties. The mechanical properties of the austempered samples were tested comprehensively, and the results were correlated with their microstructures and the stability of the retained austenite phases. From the microstructural observations, the V-alloyed samples exhibited a finer microstructure and a more acicular ferrite phase than unalloyed samples. The V addition delayed the coarsening of the acicular ferrite structures and considerably contributed to the improvement of the mechanical properties of GGG60. Moreover, the X-ray diffraction results revealed that the retained austenite volume and the carbon enrichment of austenite phases in ADI samples were remarkably affected by the addition of vanadium. The increase in volume fraction of retained austenite and its carbon content provided favorable ductility and toughness to V-15, as confirmed by the elongation and impact test results. Consequently, the dual-phase ausferrite microstructure of V-15 that was austempered at 300 & DEG;C for 60 min exhibited high strength with substantial ductility and toughness for crankshaft applications.en_US
dc.identifier.doi10.1007/s11465-023-0746-2
dc.identifier.issn2095-0233
dc.identifier.issn2095-0241
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85170088006en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1007/s11465-023-0746-2
dc.identifier.urihttps://hdl.handle.net/11411/7239
dc.identifier.volume18en_US
dc.identifier.wosWOS:001060840600002en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherHigher Education Pressen_US
dc.relation.ispartofFrontiers of Mechanical Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAustempered Ductile İron (Adı)en_US
dc.subjectVanadium Alloyingen_US
dc.subjectMechanical Propertiesen_US
dc.subjectCrankshaftsen_US
dc.subjectRetained Austeniteen_US
dc.subjectPhase-Transformation Kineticsen_US
dc.subjectFracture-Toughnessen_US
dc.subjectWear-Resistanceen_US
dc.subjectHeat-Treatmenten_US
dc.subjectAbrasive Wearen_US
dc.subjectIn-Situen_US
dc.subjectAusteniteen_US
dc.subjectAdien_US
dc.subjectMicrostructureen_US
dc.subjectNickelen_US
dc.titleMechanical properties of vanadium-alloyed austempered ductile iron for crankshaft applicationsen_US
dc.typeArticleen_US

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