Corrosion Behavior of Al10Cr30Fe25Mn30Ti5 High-Entropy Alloy: Microstructural, Electrochemical, and Surface Analysis
In this work, the corrosion performance of a new developed high-entropy alloy (HEA) of the composition AlCrFeMnTi (at. %) was studied. The corrosion testing of the AlCrFeMnTi HEA was carried out in 2.5 M NaOH, 0.6 M NaCl, and in 0.5 M HSO. The correlation between the microstructure, elemental compos...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/287498 |
| Acceso en línea: | http://hdl.handle.net/10261/287498 |
| Access Level: | acceso abierto |
| Palabra clave: | High-entropy alloys (HEA) Electrochemical impedance spectroscopy (EIS) X-ray photoelectron spectroscopy (XPS) High-energy X-ray diffraction (HEXRD) Passive film |
| Sumario: | In this work, the corrosion performance of a new developed high-entropy alloy (HEA) of the composition AlCrFeMnTi (at. %) was studied. The corrosion testing of the AlCrFeMnTi HEA was carried out in 2.5 M NaOH, 0.6 M NaCl, and in 0.5 M HSO. The correlation between the microstructure, elemental composition, density, hardness, and corrosion resistance of the new developed AlCrFeMnTi HEA was investigated. The impedance response showed protective corrosion behavior for the neutral and acidic pH, while the alkaline environment led to a passivity breakdown due to dissolution of Al forming Al(OH). The outcome of the presented study suggests that new developed HEA is suitable to be used in industrial environments with a neutral and acidic pH. |
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