Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , , |
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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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 |