Corrosion Behavior of Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> 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 Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> (at. %) was studied. The corrosion testing of the Al<sub>...
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MDPI AG
2022-10-01
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| author | Ulises Martin Jacob Ress Pablo Pérez Paloma Adeva David M. Bastidas |
| author_facet | Ulises Martin Jacob Ress Pablo Pérez Paloma Adeva David M. Bastidas |
| author_sort | Ulises Martin |
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| description | In this work, the corrosion performance of a new developed high-entropy alloy (HEA) of the composition Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> (at. %) was studied. The corrosion testing of the Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> HEA was carried out in 2.5 M NaOH, 0.6 M NaCl, and in 0.5 M H<sub>2</sub>SO<sub>4</sub>. The correlation between the microstructure, elemental composition, density, hardness, and corrosion resistance of the new developed Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> 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)<sub>3</sub>. 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. |
| first_indexed | 2024-03-09T19:47:11Z |
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| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T19:47:11Z |
| publishDate | 2022-10-01 |
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| spelling | doaj.art-4d7c587cb4e94a48adbc4a41cc01ac772023-11-24T01:19:55ZengMDPI AGMetals2075-47012022-10-011210173610.3390/met12101736Corrosion Behavior of Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> High-Entropy Alloy: Microstructural, Electrochemical, and Surface AnalysisUlises Martin0Jacob Ress1Pablo Pérez2Paloma Adeva3David M. Bastidas4National Center for Education and Research on Corrosion and Materials Performance, NCERCAMP-UA, Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, 302 E Buchtel Ave, Akron, OH 44325-3906, USANational Center for Education and Research on Corrosion and Materials Performance, NCERCAMP-UA, Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, 302 E Buchtel Ave, Akron, OH 44325-3906, USANational Center for Metallurgical Research (CENIM, CSIC), Ave. Gregorio del Amo 8, 28040 Madrid, SpainNational Center for Metallurgical Research (CENIM, CSIC), Ave. Gregorio del Amo 8, 28040 Madrid, SpainNational Center for Education and Research on Corrosion and Materials Performance, NCERCAMP-UA, Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, 302 E Buchtel Ave, Akron, OH 44325-3906, USAIn this work, the corrosion performance of a new developed high-entropy alloy (HEA) of the composition Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> (at. %) was studied. The corrosion testing of the Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> HEA was carried out in 2.5 M NaOH, 0.6 M NaCl, and in 0.5 M H<sub>2</sub>SO<sub>4</sub>. The correlation between the microstructure, elemental composition, density, hardness, and corrosion resistance of the new developed Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> 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)<sub>3</sub>. 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.https://www.mdpi.com/2075-4701/12/10/1736high-entropy alloys (HEA)electrochemical impedance spectroscopy (EIS)X-ray photoelectron spectroscopy (XPS)high-energy X-ray diffraction (HEXRD)passive film |
| spellingShingle | Ulises Martin Jacob Ress Pablo Pérez Paloma Adeva David M. Bastidas Corrosion Behavior of Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> High-Entropy Alloy: Microstructural, Electrochemical, and Surface Analysis Metals high-entropy alloys (HEA) electrochemical impedance spectroscopy (EIS) X-ray photoelectron spectroscopy (XPS) high-energy X-ray diffraction (HEXRD) passive film |
| title | Corrosion Behavior of Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> High-Entropy Alloy: Microstructural, Electrochemical, and Surface Analysis |
| title_full | Corrosion Behavior of Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> High-Entropy Alloy: Microstructural, Electrochemical, and Surface Analysis |
| title_fullStr | Corrosion Behavior of Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> High-Entropy Alloy: Microstructural, Electrochemical, and Surface Analysis |
| title_full_unstemmed | Corrosion Behavior of Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> High-Entropy Alloy: Microstructural, Electrochemical, and Surface Analysis |
| title_short | Corrosion Behavior of Al<sub>10</sub>Cr<sub>30</sub>Fe<sub>25</sub>Mn<sub>30</sub>Ti<sub>5</sub> High-Entropy Alloy: Microstructural, Electrochemical, and Surface Analysis |
| title_sort | corrosion behavior of al sub 10 sub cr sub 30 sub fe sub 25 sub mn sub 30 sub ti sub 5 sub high entropy alloy microstructural electrochemical and surface analysis |
| topic | high-entropy alloys (HEA) electrochemical impedance spectroscopy (EIS) X-ray photoelectron spectroscopy (XPS) high-energy X-ray diffraction (HEXRD) passive film |
| url | https://www.mdpi.com/2075-4701/12/10/1736 |
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