The role of MgO nanoparticles on the corrosion resistance of hot-dip Al–Zn coating
This study investigates the impact of MgO nanoparticles (0, 0.1, 0.5, and 1 wt%) on the corrosion behavior of hot-dipped galvalume (Zn-55Al-1.6Si) coating. The corrosion behavior of coatings was assessed using a salt spray, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarizati...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024174221 |
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| author | Seyed Reza Siasi Rad Kamran Dehghani |
| author_facet | Seyed Reza Siasi Rad Kamran Dehghani |
| author_sort | Seyed Reza Siasi Rad |
| collection | DOAJ |
| description | This study investigates the impact of MgO nanoparticles (0, 0.1, 0.5, and 1 wt%) on the corrosion behavior of hot-dipped galvalume (Zn-55Al-1.6Si) coating. The corrosion behavior of coatings was assessed using a salt spray, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization tests in air-saturated 3.5 wt% NaCl solution. The surface of the coatings was examined using field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM). The results revealed that MgO nanoparticles were mainly located in zinc-rich interdendritic areas and filled the micro-holes within the coating. By creating a protective shield and separating the coating from the corrosive agents, these nanoparticles enhanced the corrosion resistance of coatings. Notably, the galvalume coating with the highest MgO nanoparticle content (1 wt%) exhibited the best corrosion resistance. |
| format | Article |
| id | doaj-art-ea7461c72c5142cdb7c51341564c12c1 |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-ea7461c72c5142cdb7c51341564c12c12025-01-17T04:51:08ZengElsevierHeliyon2405-84402025-01-01111e41391The role of MgO nanoparticles on the corrosion resistance of hot-dip Al–Zn coatingSeyed Reza Siasi Rad0Kamran Dehghani1Department of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Hafez Ave., P.O. Box 15875-4413, Tehran, IranDepartment of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Hafez Ave., P.O. Box 15875-4413, Tehran, IranThis study investigates the impact of MgO nanoparticles (0, 0.1, 0.5, and 1 wt%) on the corrosion behavior of hot-dipped galvalume (Zn-55Al-1.6Si) coating. The corrosion behavior of coatings was assessed using a salt spray, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization tests in air-saturated 3.5 wt% NaCl solution. The surface of the coatings was examined using field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM). The results revealed that MgO nanoparticles were mainly located in zinc-rich interdendritic areas and filled the micro-holes within the coating. By creating a protective shield and separating the coating from the corrosive agents, these nanoparticles enhanced the corrosion resistance of coatings. Notably, the galvalume coating with the highest MgO nanoparticle content (1 wt%) exhibited the best corrosion resistance.http://www.sciencedirect.com/science/article/pii/S2405844024174221Galvalume coatingMgO nanoparticlesCorrosion |
| spellingShingle | Seyed Reza Siasi Rad Kamran Dehghani The role of MgO nanoparticles on the corrosion resistance of hot-dip Al–Zn coating Heliyon Galvalume coating MgO nanoparticles Corrosion |
| title | The role of MgO nanoparticles on the corrosion resistance of hot-dip Al–Zn coating |
| title_full | The role of MgO nanoparticles on the corrosion resistance of hot-dip Al–Zn coating |
| title_fullStr | The role of MgO nanoparticles on the corrosion resistance of hot-dip Al–Zn coating |
| title_full_unstemmed | The role of MgO nanoparticles on the corrosion resistance of hot-dip Al–Zn coating |
| title_short | The role of MgO nanoparticles on the corrosion resistance of hot-dip Al–Zn coating |
| title_sort | role of mgo nanoparticles on the corrosion resistance of hot dip al zn coating |
| topic | Galvalume coating MgO nanoparticles Corrosion |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024174221 |
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