Dynamic Strain Aging Behavior of Cobalt-Based Haynes188 Superalloy

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dc.authoridNOHUTCU, SAMET/0000-0002-2600-3993
dc.authoridKACAR, Ramazan/0000-0002-3903-1838
dc.contributor.authorNohutcu, Samet
dc.contributor.authorKacar, Ramazan
dc.date.accessioned2024-09-29T15:54:32Z
dc.date.available2024-09-29T15:54:32Z
dc.date.issued2024
dc.departmentKarabük Üniversitesien_US
dc.description.abstractSuperalloys have been developed to meet the need for materials that will serve at high operating temperatures without losing their properties. The three major classes of superalloys are nickel-, iron-, and cobalt-based alloys. Cobalt-based superalloys are used between 650 and 1100 degrees C temperatures due to their wear, creep, oxidation, heat, and corrosion resistance. Haynes 188, an essential family member, is mainly used in gas turbine engines such as combustion chambers, air transfer ducts, fixed blades, exhaust nozzles, and flame holder components. Strengthening is achieved by solid solution or carbide and intermetallic formed in their structures. None of the cobalt-based superalloys are fully solid solution alloys. Almost all contain carbide or intermetallic compounds. This can lead to dynamic strain aging at different service temperatures in the alloy under load, resulting in a reduction in ductility. Considering the temperatures in service conditions, the dynamic strain ageing behavior of Haynes 188 alloy at 25, 250, 400, 550, 700, 850, and 1000 degrees C was thoroughly examined for the first time in this study. The unsteady yielding with different type's serration verified that the dynamic strain ageing is formed in Haynes 188 alloy. Therefore, ductility of alloy decreased in the temperature range of 250-700 degrees C, particularly at 550 degrees C.en_US
dc.description.sponsorshipScientific Research Projects Coordination Unit of Karabuk University [KBU-BAP-22-DR-081]en_US
dc.description.sponsorshipAcknowledgmentsThis work was supported by the Scientific Research Projects Coordination Unit of Karabuk University under the project code number KBU-BAP-22-DR-081. Authors are grateful for their financial support.en_US
dc.identifier.doi10.1007/s11665-023-08146-3
dc.identifier.endpage2230en_US
dc.identifier.issn1059-9495
dc.identifier.issn1544-1024
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85152684013en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage2219en_US
dc.identifier.urihttps://doi.org/10.1007/s11665-023-08146-3
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4123
dc.identifier.volume33en_US
dc.identifier.wosWOS:000967657800006en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of Materials Engineering and Performanceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectcobalt-based superalloyen_US
dc.subjectdynamic strain ageingen_US
dc.subjecthaynes 188en_US
dc.titleDynamic Strain Aging Behavior of Cobalt-Based Haynes188 Superalloyen_US
dc.typeArticleen_US

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