Effect of Double Austenitization and Pre-Annealing Heat Treatment on the Microstructural and Mechanical Properties of QT 41Cr4 Steel

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dc.authorid0000-0001-8199-4032
dc.authorid0009-0007-3720-7354
dc.contributor.authorCeltik, Cansu
dc.contributor.authorAyhan, Ismail Irfan
dc.contributor.authorYurekturk, Yakup
dc.date.accessioned2026-02-12T21:04:51Z
dc.date.available2026-02-12T21:04:51Z
dc.date.issued2023
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractIn this study, the effect of double austenitization and pre-annealing heat treatment on the final microstructure concerning changes in hardness, strength, impact toughness and hardenability characteristics of 41Cr4 steel has been examined in comparison with conventional quenching-tempering treatment. The microstructural changes were characterized by an optical microscope (OM) and scanning electron microscope (SEM), and also the variations in austenite grain sizes and carbide sizes were estimated with the Image J program. The results indicated that precursor microstructures formed with quenching and also subcritical annealing tailored the prior austenite grains and carbides in a manner of improving the strength and toughness without loss in hardness and ductility. 776 MPa yield strength and 30 J Charpy impact energy were obtained in conventional quench-tempering settings, and the corresponding values for double austenitization treatment were 886 MPa and 71 J, and 830 MPa and 34 J for pre-annealing treatment, respectively. Grain size reduction and modification of carbides in tempered martensite microstructure with the applied pre-heat treatments resulted in advanced Charpy impact energies including cryogenic test circumstances and room temperature strength values.
dc.description.sponsorshipBursa Technical University Scientific Research Projects [210Y001]
dc.description.sponsorshipThe authors would like to thank Cemtas Inc., for their support in material supply and mechanical testing for this study. This study was financially supported by Bursa Technical University Scientific Research Projects with project number 210Y001.
dc.identifier.doi10.1007/s12666-023-02975-5
dc.identifier.endpage2855
dc.identifier.issn0972-2815
dc.identifier.issn0975-1645
dc.identifier.issue10
dc.identifier.scopus2-s2.0-85160324333
dc.identifier.scopusqualityQ2
dc.identifier.startpage2845
dc.identifier.urihttps://doi.org/10.1007/s12666-023-02975-5
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6686
dc.identifier.volume76
dc.identifier.wosWOS:000994625200002
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer India
dc.relation.ispartofTransactions of The Indian Institute of Metals
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260212
dc.subject41Cr4
dc.subjectDouble austenitization
dc.subjectMicrostructure
dc.subjectFact Sage calculation
dc.subjectMechanical properties
dc.titleEffect of Double Austenitization and Pre-Annealing Heat Treatment on the Microstructural and Mechanical Properties of QT 41Cr4 Steel
dc.typeArticle

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