Electrochemical Noise Analysis Using Experimental Chaos Theory, Power Spectral Density and Hilbert–Huang Transform in Anodized Aluminum Alloys in Tartaric–Phosphoric–Sulfuric Acid Solutions
Aluminum and its alloys find widespread applications across diverse industries such as the automotive, construction, and aeronautics industries. When these alloys come into contact with ambient air, an Al2O3 thin oxide layer is naturally formed, typically measuring 2 to 4 nm and exhibiting remarkabl...
| 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/26315/7/26315.pdf |
| _version_ | 1824420471046668288 |
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| author | Martínez Ramos, Cynthia Olguín Coca, Javier López León, Luis Daimir Gaona Tiburcio, Citlalli Lara Banda, María del Refugio Maldonado Bandala, Erick Castañeda Robles, Ivan Jáquez Muñoz, Jesús Manuel Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Almeraya Calderón, Facundo |
| author_facet | Martínez Ramos, Cynthia Olguín Coca, Javier López León, Luis Daimir Gaona Tiburcio, Citlalli Lara Banda, María del Refugio Maldonado Bandala, Erick Castañeda Robles, Ivan Jáquez Muñoz, Jesús Manuel Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Almeraya Calderón, Facundo |
| author_sort | Martínez Ramos, Cynthia |
| collection | Repositorio Institucional |
| description | Aluminum and its alloys find widespread applications across diverse industries such as the automotive, construction, and aeronautics industries. When these alloys come into contact with ambient air, an Al2O3 thin oxide layer is naturally formed, typically measuring 2 to 4 nm and exhibiting remarkable hardness and protective qualities, rendering the alloys corrosion-resistant in specific atmospheric and chemical environments. This study aimed to characterize the electrochemical behaviors of anodized AA2024 and AA7075 alloys within a complex three-component electrolyte composed of tartaric–phosphoric–sulfuric acid (TPSA) solutions. The anodized specimens were subsequently exposed to 3.5 wt.% NaCl solution at room temperature, and their electrochemical performances were meticulously evaluated using an electrochemical noise (EN) analysis in accordance with ASTM G-199, respectively. In the EN, three methods of data analysis were used: the time domain analysis (chaos analysis: application of Lyapunov exponent and dimension correlation), the frequency domain analysis (power spectral density, PSD), and the time–frequency domains analysis (Hilbert–Huang transform, HHT). Scanning electron microscopy (SEM) was used to observe the morphologies of the anodized surfaces. The results indicated that the AA2024-0, AA2024-1, and AA2024-2 alloys and the AA7075-2 and AA7075-3 samples exhibited mixed corrosion according to the Lyapunov constant, with a notable inclination towards localized corrosion when analyzed using the PSD and HHT methods. The surface was not homogenous, and the corrosion process was predominately localized in specific zones. |
| format | Article |
| id | eprints-26315 |
| institution | UANL |
| language | English |
| publishDate | 2023 |
| publisher | Molecular Diversity Preservation International |
| record_format | eprints |
| spelling | eprints-263152024-03-05T17:24:47Z http://eprints.uanl.mx/26315/ Electrochemical Noise Analysis Using Experimental Chaos Theory, Power Spectral Density and Hilbert–Huang Transform in Anodized Aluminum Alloys in Tartaric–Phosphoric–Sulfuric Acid Solutions Martínez Ramos, Cynthia Olguín Coca, Javier López León, Luis Daimir Gaona Tiburcio, Citlalli Lara Banda, María del Refugio Maldonado Bandala, Erick Castañeda Robles, Ivan Jáquez Muñoz, Jesús Manuel Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Almeraya Calderón, Facundo TA Ingeniería General y Civil Aluminum and its alloys find widespread applications across diverse industries such as the automotive, construction, and aeronautics industries. When these alloys come into contact with ambient air, an Al2O3 thin oxide layer is naturally formed, typically measuring 2 to 4 nm and exhibiting remarkable hardness and protective qualities, rendering the alloys corrosion-resistant in specific atmospheric and chemical environments. This study aimed to characterize the electrochemical behaviors of anodized AA2024 and AA7075 alloys within a complex three-component electrolyte composed of tartaric–phosphoric–sulfuric acid (TPSA) solutions. The anodized specimens were subsequently exposed to 3.5 wt.% NaCl solution at room temperature, and their electrochemical performances were meticulously evaluated using an electrochemical noise (EN) analysis in accordance with ASTM G-199, respectively. In the EN, three methods of data analysis were used: the time domain analysis (chaos analysis: application of Lyapunov exponent and dimension correlation), the frequency domain analysis (power spectral density, PSD), and the time–frequency domains analysis (Hilbert–Huang transform, HHT). Scanning electron microscopy (SEM) was used to observe the morphologies of the anodized surfaces. The results indicated that the AA2024-0, AA2024-1, and AA2024-2 alloys and the AA7075-2 and AA7075-3 samples exhibited mixed corrosion according to the Lyapunov constant, with a notable inclination towards localized corrosion when analyzed using the PSD and HHT methods. The surface was not homogenous, and the corrosion process was predominately localized in specific zones. Molecular Diversity Preservation International 2023-11-04 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/26315/7/26315.pdf http://eprints.uanl.mx/26315/7.haspreviewThumbnailVersion/26315.pdf Martínez Ramos, Cynthia y Olguín Coca, Javier y López León, Luis Daimir y Gaona Tiburcio, Citlalli y Lara Banda, María del Refugio y Maldonado Bandala, Erick y Castañeda Robles, Ivan y Jáquez Muñoz, Jesús Manuel y Cabral Miramontes, José Ángel y Nieves Mendoza, Demetrio y Almeraya Calderón, Facundo (2023) Electrochemical Noise Analysis Using Experimental Chaos Theory, Power Spectral Density and Hilbert–Huang Transform in Anodized Aluminum Alloys in Tartaric–Phosphoric–Sulfuric Acid Solutions. Metals, 13 (1850). pp. 1-18. ISSN 2075-4701 https://doi.org/10.3390/met13111850 |
| spellingShingle | TA Ingeniería General y Civil Martínez Ramos, Cynthia Olguín Coca, Javier López León, Luis Daimir Gaona Tiburcio, Citlalli Lara Banda, María del Refugio Maldonado Bandala, Erick Castañeda Robles, Ivan Jáquez Muñoz, Jesús Manuel Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Almeraya Calderón, Facundo Electrochemical Noise Analysis Using Experimental Chaos Theory, Power Spectral Density and Hilbert–Huang Transform in Anodized Aluminum Alloys in Tartaric–Phosphoric–Sulfuric Acid Solutions |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Electrochemical Noise Analysis Using Experimental Chaos Theory, Power Spectral Density and Hilbert–Huang Transform in Anodized Aluminum Alloys in Tartaric–Phosphoric–Sulfuric Acid Solutions |
| title_full | Electrochemical Noise Analysis Using Experimental Chaos Theory, Power Spectral Density and Hilbert–Huang Transform in Anodized Aluminum Alloys in Tartaric–Phosphoric–Sulfuric Acid Solutions |
| title_fullStr | Electrochemical Noise Analysis Using Experimental Chaos Theory, Power Spectral Density and Hilbert–Huang Transform in Anodized Aluminum Alloys in Tartaric–Phosphoric–Sulfuric Acid Solutions |
| title_full_unstemmed | Electrochemical Noise Analysis Using Experimental Chaos Theory, Power Spectral Density and Hilbert–Huang Transform in Anodized Aluminum Alloys in Tartaric–Phosphoric–Sulfuric Acid Solutions |
| title_short | Electrochemical Noise Analysis Using Experimental Chaos Theory, Power Spectral Density and Hilbert–Huang Transform in Anodized Aluminum Alloys in Tartaric–Phosphoric–Sulfuric Acid Solutions |
| title_sort | electrochemical noise analysis using experimental chaos theory power spectral density and hilbert huang transform in anodized aluminum alloys in tartaric phosphoric sulfuric acid solutions |
| topic | TA Ingeniería General y Civil |
| url | http://eprints.uanl.mx/26315/7/26315.pdf |
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