Use of Direct Current Resistivity Measurements to Assess AISI 304 Austenitic Stainless Steel Sensitization
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=S1516-14392015000200341 |
Resumo: | This paper describes the feasibility of using direct current electrical resistivity measurements to evaluate AISI 304 austenitic stainless steel sensitization. ASTM A262 – Practice A and double loop electrochemical potentiodynamic reactivation (DL-EPR) tests were performed to assess the degree of sensitization (DoS) qualitatively and quantitatively, and electrical resistivity (ER) was measured by the four-point direct-current potential drop method. The results indicate that the DoS increases rapidly while the ER decreases gradually in response to increasing sensitization. Thereafter, the two parameters tend to remain approximately constant. This behavior may be due to the rapid increase in the volume fraction of M23C6 precipitates over a sensitization time of 4 to 6 hours, thereafter remaining relatively constant. The ER results, which were corroborated by other techniques used in this study, confirm the promising potential of this property to monitor the sensitization phenomenon in AISI 304 steel. |
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Materials research (São Carlos. Online) |
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Use of Direct Current Resistivity Measurements to Assess AISI 304 Austenitic Stainless Steel SensitizationAISI 304 steelsensitizationelectrical resistivityDL-EPR testsThis paper describes the feasibility of using direct current electrical resistivity measurements to evaluate AISI 304 austenitic stainless steel sensitization. ASTM A262 – Practice A and double loop electrochemical potentiodynamic reactivation (DL-EPR) tests were performed to assess the degree of sensitization (DoS) qualitatively and quantitatively, and electrical resistivity (ER) was measured by the four-point direct-current potential drop method. The results indicate that the DoS increases rapidly while the ER decreases gradually in response to increasing sensitization. Thereafter, the two parameters tend to remain approximately constant. This behavior may be due to the rapid increase in the volume fraction of M23C6 precipitates over a sensitization time of 4 to 6 hours, thereafter remaining relatively constant. The ER results, which were corroborated by other techniques used in this study, confirm the promising potential of this property to monitor the sensitization phenomenon in AISI 304 steel.ABM, ABC, ABPol2015-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000200341Materials Research v.18 n.2 2015reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1516-1439.308714info:eu-repo/semantics/openAccessMesquita,Ramaiany CarneiroMecury,José Manoel RivasTanaka,Auro AtsumiSousa,Regina Célia deeng2016-06-10T00:00:00Zoai:scielo:S1516-14392015000200341Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2016-06-10T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Use of Direct Current Resistivity Measurements to Assess AISI 304 Austenitic Stainless Steel Sensitization |
title |
Use of Direct Current Resistivity Measurements to Assess AISI 304 Austenitic Stainless Steel Sensitization |
spellingShingle |
Use of Direct Current Resistivity Measurements to Assess AISI 304 Austenitic Stainless Steel Sensitization Mesquita,Ramaiany Carneiro AISI 304 steel sensitization electrical resistivity DL-EPR tests |
title_short |
Use of Direct Current Resistivity Measurements to Assess AISI 304 Austenitic Stainless Steel Sensitization |
title_full |
Use of Direct Current Resistivity Measurements to Assess AISI 304 Austenitic Stainless Steel Sensitization |
title_fullStr |
Use of Direct Current Resistivity Measurements to Assess AISI 304 Austenitic Stainless Steel Sensitization |
title_full_unstemmed |
Use of Direct Current Resistivity Measurements to Assess AISI 304 Austenitic Stainless Steel Sensitization |
title_sort |
Use of Direct Current Resistivity Measurements to Assess AISI 304 Austenitic Stainless Steel Sensitization |
author |
Mesquita,Ramaiany Carneiro |
author_facet |
Mesquita,Ramaiany Carneiro Mecury,José Manoel Rivas Tanaka,Auro Atsumi Sousa,Regina Célia de |
author_role |
author |
author2 |
Mecury,José Manoel Rivas Tanaka,Auro Atsumi Sousa,Regina Célia de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Mesquita,Ramaiany Carneiro Mecury,José Manoel Rivas Tanaka,Auro Atsumi Sousa,Regina Célia de |
dc.subject.por.fl_str_mv |
AISI 304 steel sensitization electrical resistivity DL-EPR tests |
topic |
AISI 304 steel sensitization electrical resistivity DL-EPR tests |
description |
This paper describes the feasibility of using direct current electrical resistivity measurements to evaluate AISI 304 austenitic stainless steel sensitization. ASTM A262 – Practice A and double loop electrochemical potentiodynamic reactivation (DL-EPR) tests were performed to assess the degree of sensitization (DoS) qualitatively and quantitatively, and electrical resistivity (ER) was measured by the four-point direct-current potential drop method. The results indicate that the DoS increases rapidly while the ER decreases gradually in response to increasing sensitization. Thereafter, the two parameters tend to remain approximately constant. This behavior may be due to the rapid increase in the volume fraction of M23C6 precipitates over a sensitization time of 4 to 6 hours, thereafter remaining relatively constant. The ER results, which were corroborated by other techniques used in this study, confirm the promising potential of this property to monitor the sensitization phenomenon in AISI 304 steel. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-04-01 |
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=S1516-14392015000200341 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000200341 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1516-1439.308714 |
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 n.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_ |
1754212665437192192 |