Journal
SURFACE & COATINGS TECHNOLOGY
Volume 416, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2021.127116
Keywords
Micro-arc oxidation; 2-aminobenzimidazole; Halloysite nanotube; Corrosion inhibitor
Funding
- [HCM109001]
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Incorporating 2-aminobenzimidazole (2-ABi) loaded halloysite nanotubes (HNTs) into MAO coatings can provide actively protective functionality, enhancing the corrosion resistance of Mg alloys with a self-healing effect.
Micro-Arc oxidation (MAO) coatings with actively protective functionality by incorporating 2-aminobenzimidazole (2-ABi) loaded halloysite nanotubes (HNTs) was presented. The coatings were characterized by SEM, EDX and XRD. Corrosion behavior was evaluated by EIS, PDP and salt spray test. With the SEM and EDX analysis, the existence of HNT or 2ABi-loaded HNT was confirmed. The OCP evolution, EIS complex spectra and the result of salt spray test showed the enhanced corrosion resistance of 2-ABi-HNT MAO coating owing to the self-healing effect, suggesting 2-ABi has good potential as corrosion inhibitor for Mg alloys.
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