Corrosion resistance of titanium alloys anodized in alkaline solutions
Titanium alloys present superior electrochemical properties due to the generation of the TiO2 passive layer. The ability to generate an oxide passive layer depends on the anodized alloy. This work mainly studies the corrosion resistance of the alloys Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V anodized in NaOH...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
Molecular Diversity Preservation International
2023
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| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/25999/7/25999.pdf |
| _version_ | 1836640492504219648 |
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| author | Almeraya Calderón, Facundo Jáquez Muñoz, Jesús Manuel Cabral Miramontes, José Ángel Estupiñan López, Francisco Humberto Lira Martínez, Manuel Alejandro Gaona Tiburcio, Citlalli |
| author_facet | Almeraya Calderón, Facundo Jáquez Muñoz, Jesús Manuel Cabral Miramontes, José Ángel Estupiñan López, Francisco Humberto Lira Martínez, Manuel Alejandro Gaona Tiburcio, Citlalli |
| author_sort | Almeraya Calderón, Facundo |
| collection | Repositorio Institucional |
| description | Titanium alloys present superior electrochemical properties due to the generation of the TiO2 passive layer. The ability to generate an oxide passive layer depends on the anodized alloy. This work mainly studies the corrosion resistance of the alloys Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V anodized in NaOH and KOH at 1 M and 0.025 A/cm2 of current density. The electrochemical techniques were performed in a conventional three-electrode cell exposed to electrolytes of NaCl and H2SO4. Based on ASTM-G61 and G199, cyclic potentiodynamic polarization (CPP) and
electrochemical noise (EN) techniques were used. The results indicated that Ti-6Al-2Sn-4Zr-2Mo anodized on NaOH presented a higher passivity range than anodized on KOH, relating to the high reactivity of Na+ ions. The former anodized alloy also demonstrated a higher passive layer rupture potential. In EN, the results showed that Ti-6Al-4V anodized in KOH presented a trend toward a localized process due to the heterogeneity of anodized porosity and the presence of V in the alloy. |
| format | Article |
| id | eprints-25999 |
| institution | UANL |
| language | English |
| publishDate | 2023 |
| publisher | Molecular Diversity Preservation International |
| record_format | eprints |
| spelling | eprints-259992025-07-03T14:20:23Z http://eprints.uanl.mx/25999/ Corrosion resistance of titanium alloys anodized in alkaline solutions Almeraya Calderón, Facundo Jáquez Muñoz, Jesús Manuel Cabral Miramontes, José Ángel Estupiñan López, Francisco Humberto Lira Martínez, Manuel Alejandro Gaona Tiburcio, Citlalli TA Ingeniería General y Civil Titanium alloys present superior electrochemical properties due to the generation of the TiO2 passive layer. The ability to generate an oxide passive layer depends on the anodized alloy. This work mainly studies the corrosion resistance of the alloys Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V anodized in NaOH and KOH at 1 M and 0.025 A/cm2 of current density. The electrochemical techniques were performed in a conventional three-electrode cell exposed to electrolytes of NaCl and H2SO4. Based on ASTM-G61 and G199, cyclic potentiodynamic polarization (CPP) and electrochemical noise (EN) techniques were used. The results indicated that Ti-6Al-2Sn-4Zr-2Mo anodized on NaOH presented a higher passivity range than anodized on KOH, relating to the high reactivity of Na+ ions. The former anodized alloy also demonstrated a higher passive layer rupture potential. In EN, the results showed that Ti-6Al-4V anodized in KOH presented a trend toward a localized process due to the heterogeneity of anodized porosity and the presence of V in the alloy. Molecular Diversity Preservation International 2023-08-23 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/25999/7/25999.pdf http://eprints.uanl.mx/25999/7.haspreviewThumbnailVersion/25999.pdf Almeraya Calderón, Facundo y Jáquez Muñoz, Jesús Manuel y Cabral Miramontes, José Ángel y Estupiñan López, Francisco Humberto y Lira Martínez, Manuel Alejandro y Gaona Tiburcio, Citlalli (2023) Corrosion resistance of titanium alloys anodized in alkaline solutions. Metals, 13 (9). pp. 1-17. ISSN 2075-4701 https://www.mdpi.com/2075-4701/13/9/1510 1510 |
| spellingShingle | TA Ingeniería General y Civil Almeraya Calderón, Facundo Jáquez Muñoz, Jesús Manuel Cabral Miramontes, José Ángel Estupiñan López, Francisco Humberto Lira Martínez, Manuel Alejandro Gaona Tiburcio, Citlalli Corrosion resistance of titanium alloys anodized in alkaline solutions |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Corrosion resistance of titanium alloys anodized in alkaline solutions |
| title_full | Corrosion resistance of titanium alloys anodized in alkaline solutions |
| title_fullStr | Corrosion resistance of titanium alloys anodized in alkaline solutions |
| title_full_unstemmed | Corrosion resistance of titanium alloys anodized in alkaline solutions |
| title_short | Corrosion resistance of titanium alloys anodized in alkaline solutions |
| title_sort | corrosion resistance of titanium alloys anodized in alkaline solutions |
| topic | TA Ingeniería General y Civil |
| url | http://eprints.uanl.mx/25999/7/25999.pdf |
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