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Conference Paper: Predicting the strength and ductility of ultrafine grained interstitial free steels using irreversible thermodynamics
Title | Predicting the strength and ductility of ultrafine grained interstitial free steels using irreversible thermodynamics |
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Authors | |
Keywords | If Steels Irreversible Thermodynamics Severe Plastic Deformation Ultrafine Grain Size Work Hardening Modelling |
Issue Date | 2008 |
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? |
Abstract | A 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 Identifier | http://hdl.handle.net/10722/158999 |
References |
DC Field | Value | Language |
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dc.contributor.author | Huang, M | en_US |
dc.contributor.author | RiveraDíazDelCastillo, PEJ | en_US |
dc.contributor.author | Bouaziz, O | en_US |
dc.contributor.author | Zwaag, SVD | en_US |
dc.date.accessioned | 2012-08-08T09:05:02Z | - |
dc.date.available | 2012-08-08T09:05:02Z | - |
dc.date.issued | 2008 | en_US |
dc.identifier.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 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/158999 | - |
dc.description.abstract | A 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.language | eng | en_US |
dc.relation.ispartof | 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 | en_US |
dc.subject | If Steels | en_US |
dc.subject | Irreversible Thermodynamics | en_US |
dc.subject | Severe Plastic Deformation | en_US |
dc.subject | Ultrafine Grain Size | en_US |
dc.subject | Work Hardening Modelling | en_US |
dc.title | Predicting the strength and ductility of ultrafine grained interstitial free steels using irreversible thermodynamics | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Huang, M:mxhuang@hku.hk | en_US |
dc.identifier.authority | Huang, M=rp01418 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.scopus | eid_2-s2.0-62949230425 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-62949230425&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 2 Physical Metallurgy and Alloy Design | en_US |
dc.identifier.spage | 805 | en_US |
dc.identifier.epage | 812 | en_US |
dc.identifier.scopusauthorid | Huang, M=23469788700 | en_US |
dc.identifier.scopusauthorid | RiveraDíazDelcastillo, PEJ=6603017212 | en_US |
dc.identifier.scopusauthorid | Bouaziz, O=6602183179 | en_US |
dc.identifier.scopusauthorid | Zwaag, SVD=24173975000 | en_US |