Effects of polyvinylidene fluoride sealing on micro-arc oxidation coating of 7075 aluminum alloy

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 p...

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Veröffentlicht in:Anti-corrosion methods and materials 2022-01, Vol.69 (1), p.1-8
Hauptverfasser: Li, J, Song, R.G, Qi, X, Wang, C, Jiang, B
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container_end_page 8
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container_title Anti-corrosion methods and materials
container_volume 69
creator Li, J
Song, R.G
Qi, X
Wang, C
Jiang, B
description 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.
doi_str_mv 10.1108/ACMM-04-2021-2478
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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. 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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.</abstract><cop>Bradford</cop><pub>Emerald Publishing Limited</pub><doi>10.1108/ACMM-04-2021-2478</doi><tpages>8</tpages></addata></record>
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subjects Alloys
Aluminium
Aluminum
Aluminum alloys
Aluminum base alloys
Ceramic glazes
Corrosion
Corrosion effects
Corrosion resistance
Corrosive wear
Electrodes
Electrolytes
Film thickness
Fluorides
Friction
Magnesium alloys
Morphology
Oxidation
Polyvinylidene fluorides
Protective coatings
Sealing
Wear resistance
Work stations
title Effects of polyvinylidene fluoride sealing on micro-arc oxidation coating of 7075 aluminum alloy
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