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Conference Paper: Predicting the strength and ductility of ultrafine grained interstitial free steels using irreversible thermodynamics

TitlePredicting the strength and ductility of ultrafine grained interstitial free steels using irreversible thermodynamics
Authors
Huang, MRiveraDíazDelCastillo, PEJBouaziz, OZwaag, SVD
KeywordsIf Steels
Irreversible Thermodynamics
Severe Plastic Deformation
Ultrafine Grain Size
Work Hardening Modelling
Issue Date2008
Citation
New Developments On Metallurgy And Applications Of High Strength Steels, Buenos Aires 2008 - Proc. Int. Conf. New Developments On Metallurgy And Applications Of High Strength Steels, 2008, v. 2 Physical Metallurgy and Alloy Design, p. 805-812 How to Cite?
AbstractA novel grain size dependent strain hardening model is derived from the theory of irreversible thermodynamics. The model yields the evolution of the dislocation densities in the grain interior and at the grain boundary, as well as their contributions to the flow stress. It is found that sub-micron grain sizes have a lower dislocation density in the grain interior, causing ductility to decrease greatly. The predicted stress-strain curve shapes, uniform elongation and ultimate tensile strength values for interstitial free steels show good agreement with experimental observations.
Persistent Identifierhttp://hdl.handle.net/10722/158999
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorHuang, Men_US
dc.contributor.authorRiveraDíazDelCastillo, PEJen_US
dc.contributor.authorBouaziz, Oen_US
dc.contributor.authorZwaag, SVDen_US
dc.date.accessioned2012-08-08T09:05:02Z-
dc.date.available2012-08-08T09:05:02Z-
dc.date.issued2008en_US
dc.identifier.citationNew Developments On Metallurgy And Applications Of High Strength Steels, Buenos Aires 2008 - Proc. Int. Conf. New Developments On Metallurgy And Applications Of High Strength Steels, 2008, v. 2 Physical Metallurgy and Alloy Design, p. 805-812en_US
dc.identifier.urihttp://hdl.handle.net/10722/158999-
dc.description.abstractA novel grain size dependent strain hardening model is derived from the theory of irreversible thermodynamics. The model yields the evolution of the dislocation densities in the grain interior and at the grain boundary, as well as their contributions to the flow stress. It is found that sub-micron grain sizes have a lower dislocation density in the grain interior, causing ductility to decrease greatly. The predicted stress-strain curve shapes, uniform elongation and ultimate tensile strength values for interstitial free steels show good agreement with experimental observations.en_US
dc.languageengen_US
dc.relation.ispartofNew Developments on Metallurgy and Applications of High Strength Steels, Buenos Aires 2008 - Proc. Int. Conf. New Developments on Metallurgy and Applications of High Strength Steelsen_US
dc.subjectIf Steelsen_US
dc.subjectIrreversible Thermodynamicsen_US
dc.subjectSevere Plastic Deformationen_US
dc.subjectUltrafine Grain Sizeen_US
dc.subjectWork Hardening Modellingen_US
dc.titlePredicting the strength and ductility of ultrafine grained interstitial free steels using irreversible thermodynamicsen_US
dc.typeConference_Paperen_US
dc.identifier.emailHuang, M:mxhuang@hku.hken_US
dc.identifier.authorityHuang, M=rp01418en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-62949230425en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-62949230425&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume2 Physical Metallurgy and Alloy Designen_US
dc.identifier.spage805en_US
dc.identifier.epage812en_US
dc.identifier.scopusauthoridHuang, M=23469788700en_US
dc.identifier.scopusauthoridRiveraDíazDelcastillo, PEJ=6603017212en_US
dc.identifier.scopusauthoridBouaziz, O=6602183179en_US
dc.identifier.scopusauthoridZwaag, SVD=24173975000en_US

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