Effects of polyvinylidene fluoride sealing on micro-arc oxidation coating of 7075 aluminum alloy
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 10 December 2021
Issue publication date: 3 January 2022
Abstract
Purpose
The purpose of this is to study the effects of organic sealing on the structure and performance of the micro-arc oxidation (MAO) film of 7075 aluminum alloy.
Design/methodology/approach
The 7075 aluminum alloy was treated by micro-arc oxidation technology, then the MAO films were sealed by polyvinylidene fluoride (PVDF) solutions with different concentrations to forms a MAO/PVDF composite coating on the surface of the 7075 aluminum alloy matrix.
Findings
The results show that the MAO/PVDF film thickness increased to 24.8 um. When the PVDF concentration was 8 g/L, and the sealed film reached best corrosion resistance and wear resistance.
Originality/value
The effects of different concentrations of PVDF on microarc oxidation properties of 7075 aluminum alloy were studied.
Keywords
Acknowledgements
Funding: Supported by National Natural Science Foundation of China (51871031).
Citation
Li, J., Song, R.G., Qi, X., Wang, C. and Jiang, B. (2022), "Effects of polyvinylidene fluoride sealing on micro-arc oxidation coating of 7075 aluminum alloy", Anti-Corrosion Methods and Materials, Vol. 69 No. 1, pp. 1-8. https://doi.org/10.1108/ACMM-04-2021-2478
Publisher
:Emerald Publishing Limited
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