Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications
Precipitation-hardening (PH) stainless steels (SS) are widely used in various aerospace applications. These steels exhibit good mechanical and corrosion resistance. The electrochemical behavior of 15-5PH, 17-4PH, Custom450 and AM 350 stainless steels passivated with citric and nitric acid baths for...
| Autores principales: | , , , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
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Molecular Diversity Preservation International
2023
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| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/25412/2/25412.pdf |
| _version_ | 1824420203423858688 |
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| author | Villegas Tovar, José M. Gaona Tiburcio, Citlalli Lara Banda, María del Refugio Maldonado Bandala, Erick Baltazar Zamora, Miguel Ángel Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Olguín Coca, Javier Estupiñan López, Francisco H. Almeraya Calderón, Facundo |
| author_facet | Villegas Tovar, José M. Gaona Tiburcio, Citlalli Lara Banda, María del Refugio Maldonado Bandala, Erick Baltazar Zamora, Miguel Ángel Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Olguín Coca, Javier Estupiñan López, Francisco H. Almeraya Calderón, Facundo |
| author_sort | Villegas Tovar, José M. |
| collection | Repositorio Institucional |
| description | Precipitation-hardening (PH) stainless steels (SS) are widely used in various aerospace applications. These steels exhibit good mechanical and corrosion resistance. The electrochemical behavior of 15-5PH, 17-4PH, Custom450 and AM 350 stainless steels passivated with citric and nitric acid baths for 60 and 90 min at 25 and 49 °C were evaluated in 5 wt.% sodium chloride (NaCl) and 1 wt.% sulfuric acid (H2SO4) solutions. The electrochemical behavior was studied with potentiodynamic polarization curves (PPC) according to the ASTM G5-13 standard. The results indicated that there are two characteristic mechanisms that are present in the potentiodynamic polarization curves. When the PHSS is immersed in an H2SO4 solution, there is a secondary passivation, and in the NaCl solution, there is a pseudo-passivation (not stable passivation film). The current densities in the NaCl solution were between 10−4 and 10−5 mA/cm2, while those of H2SO4 were recorded around 10−2 and 10−3 mA/cm2. Citric acid does work as a passivating solution, and in some cases, the corrosion resistance of the stainless steel was comparable to that of nitric acid. |
| format | Article |
| id | eprints-25412 |
| institution | UANL |
| language | English |
| publishDate | 2023 |
| publisher | Molecular Diversity Preservation International |
| record_format | eprints |
| spelling | eprints-254122023-04-24T21:56:21Z http://eprints.uanl.mx/25412/ Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications Villegas Tovar, José M. Gaona Tiburcio, Citlalli Lara Banda, María del Refugio Maldonado Bandala, Erick Baltazar Zamora, Miguel Ángel Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Olguín Coca, Javier Estupiñan López, Francisco H. Almeraya Calderón, Facundo TA Ingeniería General y Civil Precipitation-hardening (PH) stainless steels (SS) are widely used in various aerospace applications. These steels exhibit good mechanical and corrosion resistance. The electrochemical behavior of 15-5PH, 17-4PH, Custom450 and AM 350 stainless steels passivated with citric and nitric acid baths for 60 and 90 min at 25 and 49 °C were evaluated in 5 wt.% sodium chloride (NaCl) and 1 wt.% sulfuric acid (H2SO4) solutions. The electrochemical behavior was studied with potentiodynamic polarization curves (PPC) according to the ASTM G5-13 standard. The results indicated that there are two characteristic mechanisms that are present in the potentiodynamic polarization curves. When the PHSS is immersed in an H2SO4 solution, there is a secondary passivation, and in the NaCl solution, there is a pseudo-passivation (not stable passivation film). The current densities in the NaCl solution were between 10−4 and 10−5 mA/cm2, while those of H2SO4 were recorded around 10−2 and 10−3 mA/cm2. Citric acid does work as a passivating solution, and in some cases, the corrosion resistance of the stainless steel was comparable to that of nitric acid. Molecular Diversity Preservation International 2023-04-24 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/25412/2/25412.pdf http://eprints.uanl.mx/25412/2.haspreviewThumbnailVersion/25412.pdf Villegas Tovar, José M. y Gaona Tiburcio, Citlalli y Lara Banda, María del Refugio y Maldonado Bandala, Erick y Baltazar Zamora, Miguel Ángel y Cabral Miramontes, José Ángel y Nieves Mendoza, Demetrio y Olguín Coca, Javier y Estupiñan López, Francisco H. y Almeraya Calderón, Facundo (2023) Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications. Metals, 13 (5). pp. 1-18. ISSN 2075-4701 https://doi.org/10.3390/met13050835 835 |
| spellingShingle | TA Ingeniería General y Civil Villegas Tovar, José M. Gaona Tiburcio, Citlalli Lara Banda, María del Refugio Maldonado Bandala, Erick Baltazar Zamora, Miguel Ángel Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Olguín Coca, Javier Estupiñan López, Francisco H. Almeraya Calderón, Facundo Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications |
| title_full | Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications |
| title_fullStr | Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications |
| title_full_unstemmed | Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications |
| title_short | Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications |
| title_sort | electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications |
| topic | TA Ingeniería General y Civil |
| url | http://eprints.uanl.mx/25412/2/25412.pdf |
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