Active Corrosion Protection of Mg–Al Layered Double Hydroxide for Magnesium Alloys: A Short Review
Abstract
:1. Introduction
2. Synthesis of LDH
2.1. Co-Precipitation
2.2. In-Situ Growth Methods
2.2.1. One-Step In-Situ Growth Method
2.2.2. Two-Step In-Situ Growth Method
2.2.3. Hydrothermal Treatment
2.2.4. Urea Hydrolysis
2.2.5. Steam Coating
2.3. Electrochemical Deposition
2.4. Spinning Coating
2.5. Anion-Exchange
3. The Anti-Corrosion Mechanisms
3.1. Interlayer Anion Exchange Mechanism
3.2. Composite Synergistic Corrosion Resistance Mechanisms
4. LDH Modified Coating on Magnesium Alloy
4.1. Anticorrosive Intercalated Structure
4.2. Super-Hydrophobic Modification
4.3. Biocompatible Coatings
5. Summary and Perspectives
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Sample | Electrolyte | Ecorr (V/SCE) | Icorr (μAcm−2) |
---|---|---|---|
CO3·Mg–Al LDH | 3.5 wt.% NaCl | −0.805 | 1.13 × 10−7 |
Cl·Mg–Al LDH | 3.5 wt.% NaCl | −1.300 | 2.52 × 10−7 |
NO3·Mg–Al LDH | 3.5 wt.% NaCl | −1.357 | 5.580 × 10−7 |
V2O7·Mg–Al LDH | 3.5 wt.% NaCl | −0.92 | 1.30 × 10−8 |
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Zhang, X.; Zhang, M.; Li, R.; Feng, X.; Pang, X.; Rao, J.; Cong, D.; Yin, C.; Zhang, Y. Active Corrosion Protection of Mg–Al Layered Double Hydroxide for Magnesium Alloys: A Short Review. Coatings 2021, 11, 1316. https://doi.org/10.3390/coatings11111316
Zhang X, Zhang M, Li R, Feng X, Pang X, Rao J, Cong D, Yin C, Zhang Y. Active Corrosion Protection of Mg–Al Layered Double Hydroxide for Magnesium Alloys: A Short Review. Coatings. 2021; 11(11):1316. https://doi.org/10.3390/coatings11111316
Chicago/Turabian StyleZhang, Xinfang, Min Zhang, Ruihong Li, Xiaoyan Feng, Xue Pang, Jinsong Rao, Dalong Cong, Changqing Yin, and Yuxin Zhang. 2021. "Active Corrosion Protection of Mg–Al Layered Double Hydroxide for Magnesium Alloys: A Short Review" Coatings 11, no. 11: 1316. https://doi.org/10.3390/coatings11111316