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dc.contributor.authorHurtado, Iñaki
dc.contributor.authorMendiguren, Joseba
dc.contributor.authorPoletti, Cecilia
dc.contributor.authorSilveira, Elena
dc.contributor.authorNavarro, Aitor
dc.contributor.authorMora, Elena
dc.date.accessioned2021-11-29T18:01:26Z
dc.date.available2021-11-29T18:01:26Z
dc.date.issued2021
dc.identifier.citationMora, Elena, Aitor Navarro, Elena Silveira, Cecilia Poletti, Joseba Mendiguren, and Iñaki Hurtado. “Initiation of Dynamic Recrystallization of As-Cast N08028 Alloy.” ESAFORM 2021 (March 29, 2021). doi:10.25518/esaform21.896.en
dc.identifier.isbn978-287019302-0en
dc.identifier.urihttp://hdl.handle.net/11556/1236
dc.description.abstractThe use of high nickel content austenitic stainless steels (SASS) has significantly increased in the last decade. The corrosion and high fatigue resistance of these materials make them suitable for manufacturing oil country tubular goods (OCTG). SASS are processing by forging from casting conditions. Dynamic recovery (DRV) and recrystallization (DRX) of as-cast super austenitic stainless steel, N08028 Alloy, is investigated to study the refining effect from the as-cast grain structure to fully recrystallized austenite due to hot deformation. Both the critical stress and strain for the initiation of DRX are determined using the flow curves. To perform this analysis, hot compression tests are performed at temperatures between 900°C and 1250°C, and strain rates between 0.1 s-1 and 10 s-1, up to 0,8 final strain using a Gleeble®3800 thermomechanical simulator. Subsequently, the Johnson-Avrami-Mehl-Kolmogorow (JMAK) model is used to numerically fit the flow curves and consequently determine the critical strain. No critical points are seen for temperatures under 1100°C. Above this temperature, the JMAK model proves to be valid in all studied strain rates.en
dc.description.sponsorshipThe Authors would like to acknowledge the partial support from the Research Project “ALYMICRO microstructural and corrosion phenomena modeling analysis for casting and forging for the Alloy 28” in partnership with TECNALIA and TUBACEXen
dc.language.isoengen
dc.publisherPoPuPS (University of LiFge Library)en
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleInitiation of Dynamic Recrystallization of As-Cast N08028 Alloyen
dc.typeconferenceObjecten
dc.identifier.doi10.25518/esaform21.896en
dc.rights.accessRightsopenAccessen
dc.subject.keywordsCritical Strainen
dc.subject.keywordsDynamicen
dc.subject.keywordsRecrystallizationen
dc.subject.keywordsAustenitic Stainless Steelen
dc.subject.keywordsHot Compression Testen
dc.journal.titleESAFORM 2021en
dc.page.initial896en
dc.conference.title24th International ESAFORM Conference on Material Forming, ESAFORM 2021. 14 April 2021 through 16 April 2021en


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    Attribution 4.0 InternationalExcept where otherwise noted, this item's license is described as Attribution 4.0 International