Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals

Detalhes bibliográficos
Autor(a) principal: Gonzalez,Cezar Henrique
Data de Publicação: 2004
Outros Autores: Quadros,Ney Freitas de, Araújo,Carlos José de, Morin,Michel, Guénin,Gerard
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200014
Resumo: Recently, electrical resistivity (ER) measurements have been done during some thermomechanical tests in copper based shape memory alloys (SMA's). In this work, single crystals of Cu-based SMA's have been studied at different temperatures to analyse the relationship between stress (s) and ER changes as a function of the strain (e). A good consistency between ER change values is observed in different experiments: thermal martensitic transformation, stress induced martensitic transformation and stress induced reorientation of martensite variants. During stress induced martensitic transformation (superelastic behaviour) and stress induced reorientation of martensite variants, a linear relationship is obtained between ER and strain as well as the absence of hys teresis. In conclusion, the present results show a direct evidence of martensite electrical resistivity anisotropy.
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spelling Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystalsshape memory effectsmartensitic transformationelectrical resistivitysuperelasticityRecently, electrical resistivity (ER) measurements have been done during some thermomechanical tests in copper based shape memory alloys (SMA's). In this work, single crystals of Cu-based SMA's have been studied at different temperatures to analyse the relationship between stress (s) and ER changes as a function of the strain (e). A good consistency between ER change values is observed in different experiments: thermal martensitic transformation, stress induced martensitic transformation and stress induced reorientation of martensite variants. During stress induced martensitic transformation (superelastic behaviour) and stress induced reorientation of martensite variants, a linear relationship is obtained between ER and strain as well as the absence of hys teresis. In conclusion, the present results show a direct evidence of martensite electrical resistivity anisotropy.ABM, ABC, ABPol2004-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200014Materials Research v.7 n.2 2004reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392004000200014info:eu-repo/semantics/openAccessGonzalez,Cezar HenriqueQuadros,Ney Freitas deAraújo,Carlos José deMorin,MichelGuénin,Gerardeng2004-06-29T00:00:00Zoai:scielo:S1516-14392004000200014Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2004-06-29T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals
title Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals
spellingShingle Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals
Gonzalez,Cezar Henrique
shape memory effects
martensitic transformation
electrical resistivity
superelasticity
title_short Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals
title_full Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals
title_fullStr Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals
title_full_unstemmed Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals
title_sort Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals
author Gonzalez,Cezar Henrique
author_facet Gonzalez,Cezar Henrique
Quadros,Ney Freitas de
Araújo,Carlos José de
Morin,Michel
Guénin,Gerard
author_role author
author2 Quadros,Ney Freitas de
Araújo,Carlos José de
Morin,Michel
Guénin,Gerard
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Gonzalez,Cezar Henrique
Quadros,Ney Freitas de
Araújo,Carlos José de
Morin,Michel
Guénin,Gerard
dc.subject.por.fl_str_mv shape memory effects
martensitic transformation
electrical resistivity
superelasticity
topic shape memory effects
martensitic transformation
electrical resistivity
superelasticity
description Recently, electrical resistivity (ER) measurements have been done during some thermomechanical tests in copper based shape memory alloys (SMA's). In this work, single crystals of Cu-based SMA's have been studied at different temperatures to analyse the relationship between stress (s) and ER changes as a function of the strain (e). A good consistency between ER change values is observed in different experiments: thermal martensitic transformation, stress induced martensitic transformation and stress induced reorientation of martensite variants. During stress induced martensitic transformation (superelastic behaviour) and stress induced reorientation of martensite variants, a linear relationship is obtained between ER and strain as well as the absence of hys teresis. In conclusion, the present results show a direct evidence of martensite electrical resistivity anisotropy.
publishDate 2004
dc.date.none.fl_str_mv 2004-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392004000200014
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.7 n.2 2004
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212657707089920

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