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Article: Irreversible thermodynamics modelling of plastic deformation of metals

TitleIrreversible thermodynamics modelling of plastic deformation of metals
Authors
KeywordsDislocation
Entropy
Thermodynamics
Work hardening modelling
Issue Date2008
PublisherManey Publishing. The Journal's web site is located at http://www.maney.co.uk/search?fwaction=show&fwid=185
Citation
Materials Science And Technology, 2008, v. 24 n. 4, p. 495-500 How to Cite?
AbstractIrreversible thermodynamics is employed to describe plastic deformation of metallic single crystals and coarse grained polycrystals. Dislocations are assumed to increase the crystal entropy via processes of dislocation generation, glide and annihilation. It is postulated that the entropy progresses according to the relationship dS/dγ=κ(C/T)dτ/dγ, where S is the entropy of the deformed metal, γ is the shear strain, κ is a scaling factor measuring the average distance between dislocations, C is a material dependent constant, T is the absolute temperature and t is the shear stress. A succinct expression for dislocation evolution is obtained; it is qualitatively similar to that proposed by Kocks and Mecking (Prog. Mater. Sci., 2003, 48, 171-273) on a phenomenological basis. The model is applied to the description of the deformation behaviour of Cu and Al with good results. © 2008 Institute of Materials, Minerals and Mining.
Persistent Identifierhttp://hdl.handle.net/10722/92883
ISSN
2015 Impact Factor: 1.008
2015 SCImago Journal Rankings: 0.668
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHuang, Men_HK
dc.contributor.authorRiveraDíazDelCastillo, PEJen_HK
dc.contributor.authorBouaziz, Oen_HK
dc.contributor.authorVan Der Zwaag, Sen_HK
dc.date.accessioned2010-09-22T05:02:35Z-
dc.date.available2010-09-22T05:02:35Z-
dc.date.issued2008en_HK
dc.identifier.citationMaterials Science And Technology, 2008, v. 24 n. 4, p. 495-500en_HK
dc.identifier.issn0267-0836en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92883-
dc.description.abstractIrreversible thermodynamics is employed to describe plastic deformation of metallic single crystals and coarse grained polycrystals. Dislocations are assumed to increase the crystal entropy via processes of dislocation generation, glide and annihilation. It is postulated that the entropy progresses according to the relationship dS/dγ=κ(C/T)dτ/dγ, where S is the entropy of the deformed metal, γ is the shear strain, κ is a scaling factor measuring the average distance between dislocations, C is a material dependent constant, T is the absolute temperature and t is the shear stress. A succinct expression for dislocation evolution is obtained; it is qualitatively similar to that proposed by Kocks and Mecking (Prog. Mater. Sci., 2003, 48, 171-273) on a phenomenological basis. The model is applied to the description of the deformation behaviour of Cu and Al with good results. © 2008 Institute of Materials, Minerals and Mining.en_HK
dc.languageengen_HK
dc.publisherManey Publishing. The Journal's web site is located at http://www.maney.co.uk/search?fwaction=show&fwid=185en_HK
dc.relation.ispartofMaterials Science and Technologyen_HK
dc.subjectDislocationen_HK
dc.subjectEntropyen_HK
dc.subjectThermodynamicsen_HK
dc.subjectWork hardening modellingen_HK
dc.titleIrreversible thermodynamics modelling of plastic deformation of metalsen_HK
dc.typeArticleen_HK
dc.identifier.emailHuang, M:mxhuang@hku.hken_HK
dc.identifier.authorityHuang, M=rp01418en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1179/174328408X294125en_HK
dc.identifier.scopuseid_2-s2.0-44449150200en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-44449150200&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume24en_HK
dc.identifier.issue4en_HK
dc.identifier.spage495en_HK
dc.identifier.epage500en_HK
dc.identifier.isiWOS:000255904100016-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridHuang, M=23469788700en_HK
dc.identifier.scopusauthoridRiveraDíazDelCastillo, PEJ=6603017212en_HK
dc.identifier.scopusauthoridBouaziz, O=6602183179en_HK
dc.identifier.scopusauthoridVan Der Zwaag, S=7006817556en_HK
dc.identifier.citeulike2763107-

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