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dc.contributor.authorKarmakar, Anish-
dc.contributor.authorMisra R.D.K.-
dc.contributor.authorNeogy S.-
dc.contributor.authorChakrabarti D.-
dc.identifier.citationProceedings of Materials Science Forum, (2014), 674- 678. Las Vegas, NV-
dc.description.abstractHeavy deformation of metastable austenite (below Ae3) or both austenite and ferrite in the two-phase region (between Ar3 and Ar1) has been found to develop ultra-fine ferrite grain structures with average grain sizes less than 3 μm. The sequence of different dynamic softening mechanisms involved in the grain refinement during heavy intercritical deformation, such as, dynamic recovery, dynamic recrystallization, and dynamic strain induced austenite → ferrite transformation, has been analyzed by considering strain partitioning between austenite and ferrite. Grain refinement is expected to be dictated by dynamic strain induced transformation (DSIT) at higher deformation temperatures (>1100°C) and pronounced dynamic recovery of ferrite at lower deformation temperatures (<1100°C). Evolution of crystallographic texture was dependent on the grain refinement mechanism and gamma fiber components (ND//<111>) and alpha fiber components (RD//<110>) dominated the texture at higher and lower deformation temperatures, respectively. © (2014) Trans Tech Publications, Switzerland.-
dc.description.sponsorshipCDMM;Dynamic systems Inc.;et al;National Science Foundataion (NSF);Office of Naval Research (ONR);POSCO-
dc.publisherTrans Tech Publications Ltd-
dc.relation.ispartofProceedings of Materials Science Forum-
dc.subjectDual-phase steel-
dc.subjectDynamic recrystallization-
dc.subjectDynamic strain induced transformation-
dc.subjectStrain partitioning-
dc.subjectUltra-fine grain-
dc.titleDevelopment of ultra-fine grained dual-phase steels: Mechanism of grain refinement during inter-critical deformation-
dc.typeConference Paper-
dc.affiliationKarmakar, A., Department of Metallurgical and Materials Engineering, Indian Institute of Technology (I.I.T.), Kharagpur, West Bengal, 721 302, India-
dc.affiliationMisra, R.D.K., Laboratory for Excellence in Advanced Steel Research, Center for Structural and Functional Materials, University of Louisiana at Lafayette, P.O. Box 44130, Lafayette, LA 70504-4130, United States-
dc.affiliationNeogy, S., Materials Science Division, Bhabha Atomic Research Centre (BARC), 400 085, Mumbai, India-
dc.affiliationChakrabarti, D., Department of Metallurgical and Materials Engineering, Indian Institute of Technology (I.I.T.), Kharagpur, West Bengal, 721 302, India-
dc.identifier.conferencedetails8th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2013, Las Vegas, NV, 2-6 December 2013-
Appears in Collections:Conference Publications [MT]

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