Salt spray test on AISI 316L stainless steel

Autores
Inés, Mariano Nicolás; Mansilla, Graciela Analía
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Damage produced by rigorous working conditions can affect materials, especially when they are exposed to high temperatures, corrosive atmospheres and mechanical stresses. Austenitic stainless steels have variable chromium contents but greater than 16%, which allows the surface formation of a passivating thin layer of chromium oxide (Cr2O3) that protects the steel against corrosion during prolonged exposure to aggressive environments. From a metallurgical point of view, these steels meet the requirements to operate under prolonged exposures to high temperature and aggressive environments (depending on the steel grade), however attention must be paid to the precipitation of different carbides, such as M23C6 and M6C, and especially sigma () phase formation, since its precipitation produced chromium depleting zones which are very harmful in many applications, because it makes the material brittle and allows high corrosion penetration. Another consequence is sensitize hydrogen capture originated during corrosion. The aim of this work is to evaluate the corrosive behavior of an austenitic stainless steel (AISI 316L) that was first exposed to several heat treatments conditions and then was subjected to a spray saline solution of 5% NaCl, inside the chamber the temperature was set in 35ºC while the saturated air temperature was 47ºC. Characterization techniques such as optical and scanning electron microscopy were applied. Results allowed to establish the incidence on the corrosion rate of formed chromium carbides, that sensitize steel to the attack of chloride ions responsible of pitting corrosion by breaking of the passive layer thus helping a rapid corrosion rate.
Fil: Inés, Mariano Nicolás. Universidad Tecnológica Nacional. Facultad Regional San Nicolás. Departamento Metalurgia. Centro DEYTEMA; Argentina.
Fil: Mansilla, Graciela Analía. Universidad Tecnológica Nacional. Facultad Regional San Nicolás. Departamento Metalurgia. Centro DEYTEMA; Argentina.
Peer Reviewed
Materia
Stainless steel
Aceros inoxidables
Carburos
Carbides
Corrosión
corrosion
Cámara de niebla salina
Salt spray chamber
Corrosión por picado
Piting corrosion
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2024-10-07T13:03:24Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/11584
Acceder
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oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/11584
network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Salt spray test on AISI 316L stainless steelInés, Mariano NicolásMansilla, Graciela AnalíaStainless steelAceros inoxidablesCarburosCarbidesCorrosióncorrosionCámara de niebla salinaSalt spray chamberCorrosión por picadoPiting corrosionDamage produced by rigorous working conditions can affect materials, especially when they are exposed to high temperatures, corrosive atmospheres and mechanical stresses. Austenitic stainless steels have variable chromium contents but greater than 16%, which allows the surface formation of a passivating thin layer of chromium oxide (Cr2O3) that protects the steel against corrosion during prolonged exposure to aggressive environments. From a metallurgical point of view, these steels meet the requirements to operate under prolonged exposures to high temperature and aggressive environments (depending on the steel grade), however attention must be paid to the precipitation of different carbides, such as M23C6 and M6C, and especially sigma () phase formation, since its precipitation produced chromium depleting zones which are very harmful in many applications, because it makes the material brittle and allows high corrosion penetration. Another consequence is sensitize hydrogen capture originated during corrosion. The aim of this work is to evaluate the corrosive behavior of an austenitic stainless steel (AISI 316L) that was first exposed to several heat treatments conditions and then was subjected to a spray saline solution of 5% NaCl, inside the chamber the temperature was set in 35ºC while the saturated air temperature was 47ºC. Characterization techniques such as optical and scanning electron microscopy were applied. Results allowed to establish the incidence on the corrosion rate of formed chromium carbides, that sensitize steel to the attack of chloride ions responsible of pitting corrosion by breaking of the passive layer thus helping a rapid corrosion rate.Fil: Inés, Mariano Nicolás. Universidad Tecnológica Nacional. Facultad Regional San Nicolás. Departamento Metalurgia. Centro DEYTEMA; Argentina.Fil: Mansilla, Graciela Analía. Universidad Tecnológica Nacional. Facultad Regional San Nicolás. Departamento Metalurgia. Centro DEYTEMA; Argentina.Peer Reviewed2024-10-07T13:03:24Z2024-10-07T13:03:24Z2020-01-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfhttps://www.ingenieriametalurgica.com/http://hdl.handle.net/20.500.12272/11584enginfo:eu-repo/semantics/openAccess2024-10-07T13:03:24Zhttp://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 InternacionalLicencia Creative commonsreponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2026-10-01T11:57:30Zoai:ria.utn.edu.ar:20.500.12272/11584instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2026-10-01 11:57:31.483Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Salt spray test on AISI 316L stainless steel
title Salt spray test on AISI 316L stainless steel
spellingShingle Salt spray test on AISI 316L stainless steel
Inés, Mariano Nicolás
Stainless steel
Aceros inoxidables
Carburos
Carbides
Corrosión
corrosion
Cámara de niebla salina
Salt spray chamber
Corrosión por picado
Piting corrosion
title_short Salt spray test on AISI 316L stainless steel
title_full Salt spray test on AISI 316L stainless steel
title_fullStr Salt spray test on AISI 316L stainless steel
title_full_unstemmed Salt spray test on AISI 316L stainless steel
title_sort Salt spray test on AISI 316L stainless steel
dc.creator.none.fl_str_mv Inés, Mariano Nicolás
Mansilla, Graciela Analía
author Inés, Mariano Nicolás
author_facet Inés, Mariano Nicolás
Mansilla, Graciela Analía
author_role author
author2 Mansilla, Graciela Analía
author2_role author
dc.subject.none.fl_str_mv Stainless steel
Aceros inoxidables
Carburos
Carbides
Corrosión
corrosion
Cámara de niebla salina
Salt spray chamber
Corrosión por picado
Piting corrosion
topic Stainless steel
Aceros inoxidables
Carburos
Carbides
Corrosión
corrosion
Cámara de niebla salina
Salt spray chamber
Corrosión por picado
Piting corrosion
dc.description.none.fl_txt_mv Damage produced by rigorous working conditions can affect materials, especially when they are exposed to high temperatures, corrosive atmospheres and mechanical stresses. Austenitic stainless steels have variable chromium contents but greater than 16%, which allows the surface formation of a passivating thin layer of chromium oxide (Cr2O3) that protects the steel against corrosion during prolonged exposure to aggressive environments. From a metallurgical point of view, these steels meet the requirements to operate under prolonged exposures to high temperature and aggressive environments (depending on the steel grade), however attention must be paid to the precipitation of different carbides, such as M23C6 and M6C, and especially sigma () phase formation, since its precipitation produced chromium depleting zones which are very harmful in many applications, because it makes the material brittle and allows high corrosion penetration. Another consequence is sensitize hydrogen capture originated during corrosion. The aim of this work is to evaluate the corrosive behavior of an austenitic stainless steel (AISI 316L) that was first exposed to several heat treatments conditions and then was subjected to a spray saline solution of 5% NaCl, inside the chamber the temperature was set in 35ºC while the saturated air temperature was 47ºC. Characterization techniques such as optical and scanning electron microscopy were applied. Results allowed to establish the incidence on the corrosion rate of formed chromium carbides, that sensitize steel to the attack of chloride ions responsible of pitting corrosion by breaking of the passive layer thus helping a rapid corrosion rate.
Fil: Inés, Mariano Nicolás. Universidad Tecnológica Nacional. Facultad Regional San Nicolás. Departamento Metalurgia. Centro DEYTEMA; Argentina.
Fil: Mansilla, Graciela Analía. Universidad Tecnológica Nacional. Facultad Regional San Nicolás. Departamento Metalurgia. Centro DEYTEMA; Argentina.
Peer Reviewed
description Damage produced by rigorous working conditions can affect materials, especially when they are exposed to high temperatures, corrosive atmospheres and mechanical stresses. Austenitic stainless steels have variable chromium contents but greater than 16%, which allows the surface formation of a passivating thin layer of chromium oxide (Cr2O3) that protects the steel against corrosion during prolonged exposure to aggressive environments. From a metallurgical point of view, these steels meet the requirements to operate under prolonged exposures to high temperature and aggressive environments (depending on the steel grade), however attention must be paid to the precipitation of different carbides, such as M23C6 and M6C, and especially sigma () phase formation, since its precipitation produced chromium depleting zones which are very harmful in many applications, because it makes the material brittle and allows high corrosion penetration. Another consequence is sensitize hydrogen capture originated during corrosion. The aim of this work is to evaluate the corrosive behavior of an austenitic stainless steel (AISI 316L) that was first exposed to several heat treatments conditions and then was subjected to a spray saline solution of 5% NaCl, inside the chamber the temperature was set in 35ºC while the saturated air temperature was 47ºC. Characterization techniques such as optical and scanning electron microscopy were applied. Results allowed to establish the incidence on the corrosion rate of formed chromium carbides, that sensitize steel to the attack of chloride ions responsible of pitting corrosion by breaking of the passive layer thus helping a rapid corrosion rate.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-10
2024-10-07T13:03:24Z
2024-10-07T13:03:24Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.ingenieriametalurgica.com/
http://hdl.handle.net/20.500.12272/11584
url https://www.ingenieriametalurgica.com/
http://hdl.handle.net/20.500.12272/11584
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2024-10-07T13:03:24Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Licencia Creative commons
eu_rights_str_mv openAccess
rights_invalid_str_mv 2024-10-07T13:03:24Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Licencia Creative commons
dc.format.none.fl_str_mv pdf
application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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score 13.364332

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