Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels

The influence of ageing heat treatments (675 and 875 °C for 1.5 to 48 h) on the microstructure and intergranular corrosion resistance of sintered in nitrogen duplex stainless steels was investigated. The materials were obtained by sintering mixtures of austenitic AISI 316L and ferritic AISI 430L pow...

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Autores: García Cabezón, Ana Cristina, Martín Pedrosa, Fernando, Blanco Val, María Yolanda, López Aparicio, Manuel Federico
Tipo de recurso: artículo
Fecha de publicación:2010
País:España
Institución:Universidad de Valladolid
Repositorio:UVaDOC. Repositorio Documental de la Universidad de Valladolid
OAI Identifier:oai:uvadoc.uva.es:10324/21905
Acceso en línea:https://doi.org/10.1016/j.corsci.2010.07.023
http://uvadoc.uva.es/handle/10324/21905
Access Level:acceso abierto
Palabra clave:Stainless steel
Polarization
Intergranular corrosion
Repassivation
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spelling Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steelsGarcía Cabezón, Ana CristinaMartín Pedrosa, FernandoBlanco Val, María YolandaLópez Aparicio, Manuel FedericoStainless steelPolarizationIntergranular corrosionRepassivationThe influence of ageing heat treatments (675 and 875 °C for 1.5 to 48 h) on the microstructure and intergranular corrosion resistance of sintered in nitrogen duplex stainless steels was investigated. The materials were obtained by sintering mixtures of austenitic AISI 316L and ferritic AISI 430L powders. Corrosion behaviour was evaluated by using electrochemical techniques. The beneficial effect of nitrogen on corrosion behaviour of solution annealed samples was established. During ageing, secondary phases were precipitated and the intergranular and transgranular corrosion resistance significantly decreased though repassivation was observed in specimens aged at 875 °C for times up to 8 h.Ministerio de Ciencia e Innovación, Dirección General de Programas y Transferencia de Conocimiento, Proyectos I+D, MAT2008-02788ELSERVIER2010info:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.1016/j.corsci.2010.07.023http://uvadoc.uva.es/handle/10324/21905reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolidinstname:Universidad de ValladolidInglésinfo:eu-repo/semantics/openAccessoai:uvadoc.uva.es:10324/219052026-06-13T12:44:47Z
dc.title.none.fl_str_mv Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels
title Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels
spellingShingle Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels
García Cabezón, Ana Cristina
Stainless steel
Polarization
Intergranular corrosion
Repassivation
title_short Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels
title_full Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels
title_fullStr Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels
title_full_unstemmed Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels
title_sort Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels
dc.creator.none.fl_str_mv García Cabezón, Ana Cristina
Martín Pedrosa, Fernando
Blanco Val, María Yolanda
López Aparicio, Manuel Federico
author García Cabezón, Ana Cristina
author_facet García Cabezón, Ana Cristina
Martín Pedrosa, Fernando
Blanco Val, María Yolanda
López Aparicio, Manuel Federico
author_role author
author2 Martín Pedrosa, Fernando
Blanco Val, María Yolanda
López Aparicio, Manuel Federico
author2_role author
author
author
dc.subject.none.fl_str_mv Stainless steel
Polarization
Intergranular corrosion
Repassivation
topic Stainless steel
Polarization
Intergranular corrosion
Repassivation
description The influence of ageing heat treatments (675 and 875 °C for 1.5 to 48 h) on the microstructure and intergranular corrosion resistance of sintered in nitrogen duplex stainless steels was investigated. The materials were obtained by sintering mixtures of austenitic AISI 316L and ferritic AISI 430L powders. Corrosion behaviour was evaluated by using electrochemical techniques. The beneficial effect of nitrogen on corrosion behaviour of solution annealed samples was established. During ageing, secondary phases were precipitated and the intergranular and transgranular corrosion resistance significantly decreased though repassivation was observed in specimens aged at 875 °C for times up to 8 h.
publishDate 2010
dc.date.none.fl_str_mv 2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.corsci.2010.07.023
http://uvadoc.uva.es/handle/10324/21905
url https://doi.org/10.1016/j.corsci.2010.07.023
http://uvadoc.uva.es/handle/10324/21905
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ELSERVIER
publisher.none.fl_str_mv ELSERVIER
dc.source.none.fl_str_mv reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname:Universidad de Valladolid
instname_str Universidad de Valladolid
reponame_str UVaDOC. Repositorio Documental de la Universidad de Valladolid
collection UVaDOC. Repositorio Documental de la Universidad de Valladolid
repository.name.fl_str_mv
repository.mail.fl_str_mv
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