Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAE
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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=S1516-14392015000800246 |
Resumo: | Dislocations are responsible for most aspects of plastic deformation in metals. In this work, the dislocation density, ρ, in brass was estimated after different deformation processes via line broadening of X-ray diffractograms using the Convolutional Multiple Whole Profile Program (CMWP) and by Transmission Electron Microscopy (TEM). In addition, we attempted to evaluate, on a global basis, the influence of crystallographic texture in ρ analysis, making sure that the results obtained by XRD could be trusted even in samples with moderate levels of texture. For this, we compared the ρ values for α brass samples (66% Cu and 34% Zn) with different levels of texture, one deformed by cold rolling and the other by equal channel angular extrusion (ECAE).The results suggest that using CMWP program it was possible to satisfactorily estimate the dislocation density in α brass. It also the was shown that the results by XRD and by TEM were self-consistent in two samples texturized to different degrees. |
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Materials research (São Carlos. Online) |
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Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAEdislocation densityTEMXRDα brassrollingECAEDislocations are responsible for most aspects of plastic deformation in metals. In this work, the dislocation density, ρ, in brass was estimated after different deformation processes via line broadening of X-ray diffractograms using the Convolutional Multiple Whole Profile Program (CMWP) and by Transmission Electron Microscopy (TEM). In addition, we attempted to evaluate, on a global basis, the influence of crystallographic texture in ρ analysis, making sure that the results obtained by XRD could be trusted even in samples with moderate levels of texture. For this, we compared the ρ values for α brass samples (66% Cu and 34% Zn) with different levels of texture, one deformed by cold rolling and the other by equal channel angular extrusion (ECAE).The results suggest that using CMWP program it was possible to satisfactorily estimate the dislocation density in α brass. It also the was shown that the results by XRD and by TEM were self-consistent in two samples texturized to different degrees.ABM, ABC, ABPol2015-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000800246Materials Research v.18 suppl.2 2015reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1516-1439.369214info:eu-repo/semantics/openAccessSousa,Talita GamaDiniz,Saulo BrincoPinto,André LuizBrandao,Luiz Pauloeng2016-01-04T00:00:00Zoai:scielo:S1516-14392015000800246Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2016-01-04T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAE |
title |
Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAE |
spellingShingle |
Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAE Sousa,Talita Gama dislocation density TEM XRD α brass rolling ECAE |
title_short |
Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAE |
title_full |
Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAE |
title_fullStr |
Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAE |
title_full_unstemmed |
Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAE |
title_sort |
Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAE |
author |
Sousa,Talita Gama |
author_facet |
Sousa,Talita Gama Diniz,Saulo Brinco Pinto,André Luiz Brandao,Luiz Paulo |
author_role |
author |
author2 |
Diniz,Saulo Brinco Pinto,André Luiz Brandao,Luiz Paulo |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Sousa,Talita Gama Diniz,Saulo Brinco Pinto,André Luiz Brandao,Luiz Paulo |
dc.subject.por.fl_str_mv |
dislocation density TEM XRD α brass rolling ECAE |
topic |
dislocation density TEM XRD α brass rolling ECAE |
description |
Dislocations are responsible for most aspects of plastic deformation in metals. In this work, the dislocation density, ρ, in brass was estimated after different deformation processes via line broadening of X-ray diffractograms using the Convolutional Multiple Whole Profile Program (CMWP) and by Transmission Electron Microscopy (TEM). In addition, we attempted to evaluate, on a global basis, the influence of crystallographic texture in ρ analysis, making sure that the results obtained by XRD could be trusted even in samples with moderate levels of texture. For this, we compared the ρ values for α brass samples (66% Cu and 34% Zn) with different levels of texture, one deformed by cold rolling and the other by equal channel angular extrusion (ECAE).The results suggest that using CMWP program it was possible to satisfactorily estimate the dislocation density in α brass. It also the was shown that the results by XRD and by TEM were self-consistent in two samples texturized to different degrees. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-01 |
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=S1516-14392015000800246 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000800246 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1516-1439.369214 |
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.18 suppl.2 2015 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_ |
1754212666678706176 |