Citric acid as an alternative to sulfuric acid for the hard-anodizing of AA6061
Hard-anodized is a widely used method in the aeronautical sector to improve aluminum alloys abrasion and corrosion resistance. Aim of this work was to characterize the mechanical properties and resistance hard-anodized aluminum 6061 in citric acid solution as a replacement sulfuric acid solution wer...
| Autores principales: | , , , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
Molecular Diversity Preservation International
2021
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| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/25122/2/25122.pdf |
| _version_ | 1836640489812525056 |
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| author | Cabral Miramontes, José Ángel Almeraya Calderón, Facundo Estupiñan López, Francisco Humberto Lara Banda, María del Refugio Olguín Coca, Javier López León, Luis Daimir Castañeda Robles, Ivan Esneider Alcála, Miguel Ángel Zambrano Robledo, Patricia del Carmen Gaona Tiburcio, Citlalli |
| author_facet | Cabral Miramontes, José Ángel Almeraya Calderón, Facundo Estupiñan López, Francisco Humberto Lara Banda, María del Refugio Olguín Coca, Javier López León, Luis Daimir Castañeda Robles, Ivan Esneider Alcála, Miguel Ángel Zambrano Robledo, Patricia del Carmen Gaona Tiburcio, Citlalli |
| author_sort | Cabral Miramontes, José Ángel |
| collection | Repositorio Institucional |
| description | Hard-anodized is a widely used method in the aeronautical sector to improve aluminum alloys abrasion and corrosion resistance. Aim of this work was to characterize the mechanical properties and resistance hard-anodized aluminum 6061 in citric acid solution as a replacement sulfuric acid solution were investigated. Aluminum alloy 6061 was used as the base material to produce the hard anodizing; this process was carried out in a citric and sulfuric acid solution, applying current densities 3 and 4.5 A/cm2 and subsequently exposed to 3.5 wt. % NaCl solution. Microstructure and mechanical properties of the anodizing material were characterized by scanning electron microscopy (SEM) and Vickers microhardness (HV). Corrosion behavior of the hard-anodized material it was carried out with electrochemical techniques as cyclic potentiodynamic polarization (CPP) and electrochemical impedance spectroscopy (EIS) respectively. Results obtained indicated that all samples anodized in citric acid solution showed negative hysteresis and lower corrosion current density (1 × 10−10 A/cm2), indicating generalized corrosion on the material surface. EIS results show that anodizing in citric acid solution and a current density of 4.5 A/dm2 provides better corrosion protection than a sulfuric acid solution. |
| format | Article |
| id | eprints-25122 |
| institution | UANL |
| language | English |
| publishDate | 2021 |
| publisher | Molecular Diversity Preservation International |
| record_format | eprints |
| spelling | eprints-251222025-07-03T14:22:23Z http://eprints.uanl.mx/25122/ Citric acid as an alternative to sulfuric acid for the hard-anodizing of AA6061 Cabral Miramontes, José Ángel Almeraya Calderón, Facundo Estupiñan López, Francisco Humberto Lara Banda, María del Refugio Olguín Coca, Javier López León, Luis Daimir Castañeda Robles, Ivan Esneider Alcála, Miguel Ángel Zambrano Robledo, Patricia del Carmen Gaona Tiburcio, Citlalli Ingeniería y Tecnología TP Tecnología Química Hard-anodized is a widely used method in the aeronautical sector to improve aluminum alloys abrasion and corrosion resistance. Aim of this work was to characterize the mechanical properties and resistance hard-anodized aluminum 6061 in citric acid solution as a replacement sulfuric acid solution were investigated. Aluminum alloy 6061 was used as the base material to produce the hard anodizing; this process was carried out in a citric and sulfuric acid solution, applying current densities 3 and 4.5 A/cm2 and subsequently exposed to 3.5 wt. % NaCl solution. Microstructure and mechanical properties of the anodizing material were characterized by scanning electron microscopy (SEM) and Vickers microhardness (HV). Corrosion behavior of the hard-anodized material it was carried out with electrochemical techniques as cyclic potentiodynamic polarization (CPP) and electrochemical impedance spectroscopy (EIS) respectively. Results obtained indicated that all samples anodized in citric acid solution showed negative hysteresis and lower corrosion current density (1 × 10−10 A/cm2), indicating generalized corrosion on the material surface. EIS results show that anodizing in citric acid solution and a current density of 4.5 A/dm2 provides better corrosion protection than a sulfuric acid solution. Molecular Diversity Preservation International 2021-11-16 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/25122/2/25122.pdf http://eprints.uanl.mx/25122/2.haspreviewThumbnailVersion/25122.pdf Cabral Miramontes, José Ángel y Almeraya Calderón, Facundo y Estupiñan López, Francisco Humberto y Lara Banda, María del Refugio y Olguín Coca, Javier y López León, Luis Daimir y Castañeda Robles, Ivan y Esneider Alcála, Miguel Ángel y Zambrano Robledo, Patricia del Carmen y Gaona Tiburcio, Citlalli (2021) Citric acid as an alternative to sulfuric acid for the hard-anodizing of AA6061. Metals, 11 (11). pp. 1-18. ISSN 2075-4701 https://doi.org/10.3390/met11111838 https://doi.org/10.3390/met11111838 |
| spellingShingle | Ingeniería y Tecnología TP Tecnología Química Cabral Miramontes, José Ángel Almeraya Calderón, Facundo Estupiñan López, Francisco Humberto Lara Banda, María del Refugio Olguín Coca, Javier López León, Luis Daimir Castañeda Robles, Ivan Esneider Alcála, Miguel Ángel Zambrano Robledo, Patricia del Carmen Gaona Tiburcio, Citlalli Citric acid as an alternative to sulfuric acid for the hard-anodizing of AA6061 |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Citric acid as an alternative to sulfuric acid for the hard-anodizing of AA6061 |
| title_full | Citric acid as an alternative to sulfuric acid for the hard-anodizing of AA6061 |
| title_fullStr | Citric acid as an alternative to sulfuric acid for the hard-anodizing of AA6061 |
| title_full_unstemmed | Citric acid as an alternative to sulfuric acid for the hard-anodizing of AA6061 |
| title_short | Citric acid as an alternative to sulfuric acid for the hard-anodizing of AA6061 |
| title_sort | citric acid as an alternative to sulfuric acid for the hard anodizing of aa6061 |
| topic | Ingeniería y Tecnología TP Tecnología Química |
| url | http://eprints.uanl.mx/25122/2/25122.pdf |
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