HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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=S1516-14392018000400225 |
Resumo: | The replacement of electrolytic hard chrome (EHC) by high velocity oxy-fuel (HVOF) sprayed coatings is investigated due to the toxicity of EHC process. The wear behavior of AISI 4140 steel coated by HVOF-, EHC-process was compared to quenched and tempered (Q&T) steel using a pin-on-disc apparatus. The wear tests were conducted at room temperature, 10 N applied load and 0.1 m/s sliding speed in dry condition. The results were interpreted on the basis of the microstructure and hardness. Wear micromechanisms were investigated by SEM. The predominant presence of the WC phase and the formation of W2C and W3C phases, associated with decarburization of superheated regions of the CoCr binding phase of HVOF-coated samples were observed by X-ray diffraction analysis. Wear tests results show that the WC-10Co-4Cr coating exhibits better wear resistance than the EHC coating and Q&T steel. The formation of a wear resistant tribolayer was determinant to the excellent wear behavior of the thermally sprayed coating. |
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Materials research (São Carlos. Online) |
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|
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HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacementthermal spray coatingHVOFtribological behaviorsliding wearwear micromechanismThe replacement of electrolytic hard chrome (EHC) by high velocity oxy-fuel (HVOF) sprayed coatings is investigated due to the toxicity of EHC process. The wear behavior of AISI 4140 steel coated by HVOF-, EHC-process was compared to quenched and tempered (Q&T) steel using a pin-on-disc apparatus. The wear tests were conducted at room temperature, 10 N applied load and 0.1 m/s sliding speed in dry condition. The results were interpreted on the basis of the microstructure and hardness. Wear micromechanisms were investigated by SEM. The predominant presence of the WC phase and the formation of W2C and W3C phases, associated with decarburization of superheated regions of the CoCr binding phase of HVOF-coated samples were observed by X-ray diffraction analysis. Wear tests results show that the WC-10Co-4Cr coating exhibits better wear resistance than the EHC coating and Q&T steel. The formation of a wear resistant tribolayer was determinant to the excellent wear behavior of the thermally sprayed coating.ABM, ABC, ABPol2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000400225Materials Research v.21 n.4 2018reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2018-0138info:eu-repo/semantics/openAccessKrelling,Anael PremanSouza,Matheus Machado deCosta,Cesar Edil daMilan,Julio César Giubileieng2018-05-24T00:00:00Zoai:scielo:S1516-14392018000400225Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2018-05-24T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement |
title |
HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement |
spellingShingle |
HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement Krelling,Anael Preman thermal spray coating HVOF tribological behavior sliding wear wear micromechanism |
title_short |
HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement |
title_full |
HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement |
title_fullStr |
HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement |
title_full_unstemmed |
HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement |
title_sort |
HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement |
author |
Krelling,Anael Preman |
author_facet |
Krelling,Anael Preman Souza,Matheus Machado de Costa,Cesar Edil da Milan,Julio César Giubilei |
author_role |
author |
author2 |
Souza,Matheus Machado de Costa,Cesar Edil da Milan,Julio César Giubilei |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Krelling,Anael Preman Souza,Matheus Machado de Costa,Cesar Edil da Milan,Julio César Giubilei |
dc.subject.por.fl_str_mv |
thermal spray coating HVOF tribological behavior sliding wear wear micromechanism |
topic |
thermal spray coating HVOF tribological behavior sliding wear wear micromechanism |
description |
The replacement of electrolytic hard chrome (EHC) by high velocity oxy-fuel (HVOF) sprayed coatings is investigated due to the toxicity of EHC process. The wear behavior of AISI 4140 steel coated by HVOF-, EHC-process was compared to quenched and tempered (Q&T) steel using a pin-on-disc apparatus. The wear tests were conducted at room temperature, 10 N applied load and 0.1 m/s sliding speed in dry condition. The results were interpreted on the basis of the microstructure and hardness. Wear micromechanisms were investigated by SEM. The predominant presence of the WC phase and the formation of W2C and W3C phases, associated with decarburization of superheated regions of the CoCr binding phase of HVOF-coated samples were observed by X-ray diffraction analysis. Wear tests results show that the WC-10Co-4Cr coating exhibits better wear resistance than the EHC coating and Q&T steel. The formation of a wear resistant tribolayer was determinant to the excellent wear behavior of the thermally sprayed coating. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 |
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=S1516-14392018000400225 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000400225 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1980-5373-mr-2018-0138 |
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.21 n.4 2018 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_ |
1754212672763592704 |