Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass welds

The effect of multi-pass MAG welding transfer modes on the sigma phase precipitation and corrosion performance of AISI 316L thick plate were investigated. The evolution of the microstructure was examined by optical and electron microscopy as well as ferritscope measurements and energy dispersive X-r...

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Detalles Bibliográficos
Autores: Guilherme, L. H., Benedetti, A. V. [UNESP], Fugivara, C. S. [UNESP], Magnabosco, R., Oliveira, M. F.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/208089
Acceso en línea:http://dx.doi.org/10.1016/j.jmrt.2020.07.039
http://hdl.handle.net/11449/208089
Access Level:acceso abierto
Palabra clave:AISI 316L
Heat-exchangers
MAG metal transfer modes
Pitting corrosion
Sigma phase
Welding
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spelling Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass weldsAISI 316LHeat-exchangersMAG metal transfer modesPitting corrosionSigma phaseWeldingThe effect of multi-pass MAG welding transfer modes on the sigma phase precipitation and corrosion performance of AISI 316L thick plate were investigated. The evolution of the microstructure was examined by optical and electron microscopy as well as ferritscope measurements and energy dispersive X-ray spectrometry. An electrochemical microcell was then used to characterize the electrochemical behaviour of the different weld regions. The fusion line was the most critical zone for pitting corrosion for all welding procedures, due to the sigma phase precipitation, alloy elements partitioning and galvanic coupling between base metal and weld metal. It was observed the formation of sigma phase after short-circuiting or spray-arc modes, with no evidence of it to the pulsed-arc, which obtained the best corrosion resistance performance. The results evidenced the selective corrosion around sigma phase due to the depletion in Cr and Mo, with subsequent pitting nucleation. A strong correlation between the MAG welding transfer modes and the sigma phase morphology was observed. The influence of weld parameters on microstructure evolution and corrosion resistance performance was discussed. The corrosion resistance performance of the MAG welding procedures was ranked as: pulsed-arc > short-circuit > spray-arc.Engineering Department Soudap Engineering CompanyMaterials Engineering Department São Carlos School of Engineering University of São Paulo (USP)Chemistry Institute São Paulo State University (UNESP)Materials Engineering Department University Centre of FEI (FEI)Chemistry Institute São Paulo State University (UNESP)Soudap Engineering CompanyUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)University Centre of FEI (FEI)2021-06-25T11:06:10Z2021-06-25T11:06:10Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10537-10549http://dx.doi.org/10.1016/j.jmrt.2020.07.039Journal of Materials Research and Technology, v. 9, n. 5, p. 10537-10549, 2020.2238-7854http://hdl.handle.net/11449/20808910.1016/j.jmrt.2020.07.0392-s2.0-85094216737Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Materials Research and Technologyinfo:eu-repo/semantics/openAccessGuilherme, L. H.Benedetti, A. V. [UNESP]Fugivara, C. S. [UNESP]Magnabosco, R.Oliveira, M. F.2025-05-28T05:10:20Zoai:repositorio.unesp.br:11449/208089Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-05-28T05:10:20Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass welds
title Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass welds
spellingShingle Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass welds
Guilherme, L. H.
AISI 316L
Heat-exchangers
MAG metal transfer modes
Pitting corrosion
Sigma phase
Welding
title_short Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass welds
title_full Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass welds
title_fullStr Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass welds
title_full_unstemmed Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass welds
title_sort Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass welds
dc.creator.none.fl_str_mv Guilherme, L. H.
Benedetti, A. V. [UNESP]
Fugivara, C. S. [UNESP]
Magnabosco, R.
Oliveira, M. F.
author Guilherme, L. H.
author_facet Guilherme, L. H.
Benedetti, A. V. [UNESP]
Fugivara, C. S. [UNESP]
Magnabosco, R.
Oliveira, M. F.
author_role author
author2 Benedetti, A. V. [UNESP]
Fugivara, C. S. [UNESP]
Magnabosco, R.
Oliveira, M. F.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Soudap Engineering Company
Universidade de São Paulo (USP)
Universidade Estadual Paulista (Unesp)
University Centre of FEI (FEI)
dc.subject.por.fl_str_mv AISI 316L
Heat-exchangers
MAG metal transfer modes
Pitting corrosion
Sigma phase
Welding
topic AISI 316L
Heat-exchangers
MAG metal transfer modes
Pitting corrosion
Sigma phase
Welding
description The effect of multi-pass MAG welding transfer modes on the sigma phase precipitation and corrosion performance of AISI 316L thick plate were investigated. The evolution of the microstructure was examined by optical and electron microscopy as well as ferritscope measurements and energy dispersive X-ray spectrometry. An electrochemical microcell was then used to characterize the electrochemical behaviour of the different weld regions. The fusion line was the most critical zone for pitting corrosion for all welding procedures, due to the sigma phase precipitation, alloy elements partitioning and galvanic coupling between base metal and weld metal. It was observed the formation of sigma phase after short-circuiting or spray-arc modes, with no evidence of it to the pulsed-arc, which obtained the best corrosion resistance performance. The results evidenced the selective corrosion around sigma phase due to the depletion in Cr and Mo, with subsequent pitting nucleation. A strong correlation between the MAG welding transfer modes and the sigma phase morphology was observed. The influence of weld parameters on microstructure evolution and corrosion resistance performance was discussed. The corrosion resistance performance of the MAG welding procedures was ranked as: pulsed-arc > short-circuit > spray-arc.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
2021-06-25T11:06:10Z
2021-06-25T11:06:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.jmrt.2020.07.039
Journal of Materials Research and Technology, v. 9, n. 5, p. 10537-10549, 2020.
2238-7854
http://hdl.handle.net/11449/208089
10.1016/j.jmrt.2020.07.039
2-s2.0-85094216737
url http://dx.doi.org/10.1016/j.jmrt.2020.07.039
http://hdl.handle.net/11449/208089
identifier_str_mv Journal of Materials Research and Technology, v. 9, n. 5, p. 10537-10549, 2020.
2238-7854
10.1016/j.jmrt.2020.07.039
2-s2.0-85094216737
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Materials Research and Technology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 10537-10549
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
_version_ 1853671546446413824
score 15,300719

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