HVOF-sprayed Coating Over AISI 4140 Steel for Hard Chromium Replacement

Detalhes bibliográficos
Autor(a) principal: Krelling,Anael Preman
Data de Publicação: 2018
Outros Autores: Souza,Matheus Machado de, Costa,Cesar Edil da, Milan,Julio César Giubilei
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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spelling 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

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