Corrosion behavior of AISI 409Nb stainless steel manufactured by powder metallurgy exposed in H2SO4 and NaCl solutions

Powder metallurgy is an effective method for manufacturing stainless steel parts of high quality and accuracy at low cost. However, the use of sintered stainless steels is limited due to their low density, which deteriorates their corrosion resistance. The aim of this study was to determine the corr...

Full description

Bibliographic Details
Main Authors: Cabral Miramontes, José Ángel, Barceinas Sánchez, José Dolores Oscar, Poblano Salas, Carlos, Pedraza Basulto, G. K., Nieves Mendoza, Demetrio, Zambrano Robledo, Patricia del Carmen, Almeraya Calderón, Facundo, Chacón Nava, José G.
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:http://eprints.uanl.mx/25624/1/199.pdf
_version_ 1824420260381458432
author Cabral Miramontes, José Ángel
Barceinas Sánchez, José Dolores Oscar
Poblano Salas, Carlos
Pedraza Basulto, G. K.
Nieves Mendoza, Demetrio
Zambrano Robledo, Patricia del Carmen
Almeraya Calderón, Facundo
Chacón Nava, José G.
author_facet Cabral Miramontes, José Ángel
Barceinas Sánchez, José Dolores Oscar
Poblano Salas, Carlos
Pedraza Basulto, G. K.
Nieves Mendoza, Demetrio
Zambrano Robledo, Patricia del Carmen
Almeraya Calderón, Facundo
Chacón Nava, José G.
author_sort Cabral Miramontes, José Ángel
collection Repositorio Institucional
description Powder metallurgy is an effective method for manufacturing stainless steel parts of high quality and accuracy at low cost. However, the use of sintered stainless steels is limited due to their low density, which deteriorates their corrosion resistance. The aim of this study was to determine the corrosion behavior of AISI 409Nb stainless steel specimens sintered with different contents of boron in a hydrogen atmosphere. Boron was added for promoting the formation of a liquid phase during sintering at 1150 °C, thereby achieving a reduction of porosity and increase in density, which is necessary to improve corrosion resistance. The electrochemical techniques of linear polarization resistance (LPR) and electrochemical noise (EN) were used to determine the corrosion behavior of samples with and without additions of boron after immersion in two solutions, 0.5M H2SO4 and 0.5M NaCl. The corrosion rates and the possible corrosion mechanisms in the sintered samples were determined. The results indicate that the samples with boron additions are more prone to corrosion due to chromium carbide precipitation.
format Article
id eprints-25624
institution UANL
language English
publishDate 2013
record_format eprints
spelling eprints-256242024-12-09T17:22:35Z http://eprints.uanl.mx/25624/ Corrosion behavior of AISI 409Nb stainless steel manufactured by powder metallurgy exposed in H2SO4 and NaCl solutions Cabral Miramontes, José Ángel Barceinas Sánchez, José Dolores Oscar Poblano Salas, Carlos Pedraza Basulto, G. K. Nieves Mendoza, Demetrio Zambrano Robledo, Patricia del Carmen Almeraya Calderón, Facundo Chacón Nava, José G. TN Ingeniería Minera. Metalurgia Powder metallurgy is an effective method for manufacturing stainless steel parts of high quality and accuracy at low cost. However, the use of sintered stainless steels is limited due to their low density, which deteriorates their corrosion resistance. The aim of this study was to determine the corrosion behavior of AISI 409Nb stainless steel specimens sintered with different contents of boron in a hydrogen atmosphere. Boron was added for promoting the formation of a liquid phase during sintering at 1150 °C, thereby achieving a reduction of porosity and increase in density, which is necessary to improve corrosion resistance. The electrochemical techniques of linear polarization resistance (LPR) and electrochemical noise (EN) were used to determine the corrosion behavior of samples with and without additions of boron after immersion in two solutions, 0.5M H2SO4 and 0.5M NaCl. The corrosion rates and the possible corrosion mechanisms in the sintered samples were determined. The results indicate that the samples with boron additions are more prone to corrosion due to chromium carbide precipitation. 2013 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/25624/1/199.pdf http://eprints.uanl.mx/25624/1.haspreviewThumbnailVersion/199.pdf Cabral Miramontes, José Ángel y Barceinas Sánchez, José Dolores Oscar y Poblano Salas, Carlos y Pedraza Basulto, G. K. y Nieves Mendoza, Demetrio y Zambrano Robledo, Patricia del Carmen y Almeraya Calderón, Facundo y Chacón Nava, José G. (2013) Corrosion behavior of AISI 409Nb stainless steel manufactured by powder metallurgy exposed in H2SO4 and NaCl solutions. International journal of electrochemical science (8). pp. 564-577. ISSN 1452-3981 (Entregado) http://www.electrochemsci.org/
spellingShingle TN Ingeniería Minera. Metalurgia
Cabral Miramontes, José Ángel
Barceinas Sánchez, José Dolores Oscar
Poblano Salas, Carlos
Pedraza Basulto, G. K.
Nieves Mendoza, Demetrio
Zambrano Robledo, Patricia del Carmen
Almeraya Calderón, Facundo
Chacón Nava, José G.
Corrosion behavior of AISI 409Nb stainless steel manufactured by powder metallurgy exposed in H2SO4 and NaCl solutions
thumbnail https://rediab.uanl.mx/themes/sandal5/images/online.png
title Corrosion behavior of AISI 409Nb stainless steel manufactured by powder metallurgy exposed in H2SO4 and NaCl solutions
title_full Corrosion behavior of AISI 409Nb stainless steel manufactured by powder metallurgy exposed in H2SO4 and NaCl solutions
title_fullStr Corrosion behavior of AISI 409Nb stainless steel manufactured by powder metallurgy exposed in H2SO4 and NaCl solutions
title_full_unstemmed Corrosion behavior of AISI 409Nb stainless steel manufactured by powder metallurgy exposed in H2SO4 and NaCl solutions
title_short Corrosion behavior of AISI 409Nb stainless steel manufactured by powder metallurgy exposed in H2SO4 and NaCl solutions
title_sort corrosion behavior of aisi 409nb stainless steel manufactured by powder metallurgy exposed in h2so4 and nacl solutions
topic TN Ingeniería Minera. Metalurgia
url http://eprints.uanl.mx/25624/1/199.pdf
work_keys_str_mv AT cabralmiramontesjoseangel corrosionbehaviorofaisi409nbstainlesssteelmanufacturedbypowdermetallurgyexposedinh2so4andnaclsolutions
AT barceinassanchezjosedoloresoscar corrosionbehaviorofaisi409nbstainlesssteelmanufacturedbypowdermetallurgyexposedinh2so4andnaclsolutions
AT poblanosalascarlos corrosionbehaviorofaisi409nbstainlesssteelmanufacturedbypowdermetallurgyexposedinh2so4andnaclsolutions
AT pedrazabasultogk corrosionbehaviorofaisi409nbstainlesssteelmanufacturedbypowdermetallurgyexposedinh2so4andnaclsolutions
AT nievesmendozademetrio corrosionbehaviorofaisi409nbstainlesssteelmanufacturedbypowdermetallurgyexposedinh2so4andnaclsolutions
AT zambranorobledopatriciadelcarmen corrosionbehaviorofaisi409nbstainlesssteelmanufacturedbypowdermetallurgyexposedinh2so4andnaclsolutions
AT almerayacalderonfacundo corrosionbehaviorofaisi409nbstainlesssteelmanufacturedbypowdermetallurgyexposedinh2so4andnaclsolutions
AT chaconnavajoseg corrosionbehaviorofaisi409nbstainlesssteelmanufacturedbypowdermetallurgyexposedinh2so4andnaclsolutions