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Conference Paper: New constitutive analysis of microstructural evolution: hot compression of gamma iron

TitleNew constitutive analysis of microstructural evolution: hot compression of gamma iron
Authors
KeywordsAustenitic steels
Constitutive relations
Hot deformation
Stress-strain modelling
Carbon content
Issue Date2011
PublisherScientific.Net.
Citation
The 7th International Conference on Processing & Manufacturing of Advanced Materials (THERMEC 2011), Quebec, Canada, 1-5 August 2011. In Materials Science Forum, 2012, v. 706-709, p. 2284-2289 How to Cite?
AbstractWork hardening evolution during deformation is typically examined quasi-statically by quenching-in the deformed structure. However quenching of gamma-Fe results in a complex martensitic structure and hence the presumed typical deformation of a face-centred cubic metal can not be easily validated. A recent derivation of constitutive relation can replicate the dynamic stress-strain curve from which the microstructure parameters can be determined (Saimoto and Van Houtte, Acta Mater., 2010 in press). In this determination the mean slip distance is quantitatively derived from the measured curve and correlated to the resolved stress and strain at that point. The plot of shear stress versus inverse mean slip distance reveals that initially the mean slip distance decreases and then increases with strain. At some point a change of slope is observed and this point has been attributed to the matching of the increasing slip distance to that of the decreasing cell size. This analysis have been applied to two low carbon steels, one with 0.002 wt %C and the other with 0.052%C as reported by M. Huang et al. (Scripta Mater, 61, 2009). The results from the compression tests over three-decades of strain rates and temperatures ranging from 920 to 1050°C for these two cases will be compared and discussed.
DescriptionOral Presentation - Steels
Persistent Identifierhttp://hdl.handle.net/10722/137747
ISBN
ISSN
2005 Impact Factor: 0.399
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSaimoto, Sen_US
dc.contributor.authorHuang, Men_US
dc.date.accessioned2011-08-26T14:32:50Z-
dc.date.available2011-08-26T14:32:50Z-
dc.date.issued2011en_US
dc.identifier.citationThe 7th International Conference on Processing & Manufacturing of Advanced Materials (THERMEC 2011), Quebec, Canada, 1-5 August 2011. In Materials Science Forum, 2012, v. 706-709, p. 2284-2289en_US
dc.identifier.isbn9783037853030-
dc.identifier.issn0255-5476-
dc.identifier.urihttp://hdl.handle.net/10722/137747-
dc.descriptionOral Presentation - Steels-
dc.description.abstractWork hardening evolution during deformation is typically examined quasi-statically by quenching-in the deformed structure. However quenching of gamma-Fe results in a complex martensitic structure and hence the presumed typical deformation of a face-centred cubic metal can not be easily validated. A recent derivation of constitutive relation can replicate the dynamic stress-strain curve from which the microstructure parameters can be determined (Saimoto and Van Houtte, Acta Mater., 2010 in press). In this determination the mean slip distance is quantitatively derived from the measured curve and correlated to the resolved stress and strain at that point. The plot of shear stress versus inverse mean slip distance reveals that initially the mean slip distance decreases and then increases with strain. At some point a change of slope is observed and this point has been attributed to the matching of the increasing slip distance to that of the decreasing cell size. This analysis have been applied to two low carbon steels, one with 0.002 wt %C and the other with 0.052%C as reported by M. Huang et al. (Scripta Mater, 61, 2009). The results from the compression tests over three-decades of strain rates and temperatures ranging from 920 to 1050°C for these two cases will be compared and discussed.-
dc.languageengen_US
dc.publisherScientific.Net.-
dc.relation.ispartofMaterials Science Forumen_US
dc.subjectAustenitic steels-
dc.subjectConstitutive relations-
dc.subjectHot deformation-
dc.subjectStress-strain modelling-
dc.subjectCarbon content-
dc.titleNew constitutive analysis of microstructural evolution: hot compression of gamma ironen_US
dc.typeConference_Paperen_US
dc.identifier.emailSaimoto, S: saimoto@me.queensu.caen_US
dc.identifier.emailHuang, M: mxhuang@hku.hk-
dc.identifier.authorityHuang, M=rp01418en_US
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.4028/www.scientific.net/MSF.706-709.2284-
dc.identifier.scopuseid_2-s2.0-84856140121-
dc.identifier.hkuros192011en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84856140121&selection=ref&src=s&origin=recordpage-
dc.identifier.volume706-709-
dc.identifier.spage2284-
dc.identifier.epage2289-
dc.identifier.isiWOS:000308517301115-
dc.publisher.placeSwitzerland-
dc.identifier.hkulrp205726-
dc.identifier.scopusauthoridHuang, M=23469788700-
dc.identifier.scopusauthoridSaimoto, S=7003682519-
dc.customcontrol.immutablesml 151116 - merged-

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