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Effects of graphene on the microstructure and properties of MAO coatings formed on AA7050
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Bo Xu
Published/Copyright:
February 23, 2021
Abstract
Ceramic coatings were prepared on the surface of 7050 highstrength aluminum alloy using micro-arc oxidation in an aluminate electrolyte with added graphene. To analyze the surface morphology, roughness, phase composition, and corrosion resistance, scanning electron microscopy, X-ray diffraction, X-ray photoelectron, and electrochemical measurements were used, respectively. The addition of 9 g · L-1 of graphene to the electrolyte decreased the micro-pore size of the composite coatings and improved the density. In addition, with the addition of graphene, the roughness was the lowest, and the corrosion resistance was significantly improved.
Keywords: Micro-arc oxidation; Graphene; Microstructure; Property; 7050 high-strength aluminum alloy
Published Online: 2021-02-23
Published in Print: 2020-06-01
© 2020 by Walter de Gruyter Berlin/Boston
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Articles in the same Issue
- CONTENTS
- Original Contributions
- Accurate estimation of DLC thin film hardness using genetic programming
- Effects of graphene on the microstructure and properties of MAO coatings formed on AA7050
- Influence of nanostructured Cu on the mechanical properties of Cu–MWCNTs composites
- Effect of NbC on the microstructure, mechanical properties, and oxidation resistance of Ti(C,N)-based cermets
- Evolution of microstructure and wear-friction behavior of W-30 wt.% Cu nanocomposite produced via a mechanochemical synthesis route
- Comparison of the strengthening effects of Nb, V, and Ti on the mechanical properties of 20MnSi low-alloy steel
- Effects of Zn content on surface deformability and corrosion resistance of MgZnMnCa alloys
- Experimental investigation on low cycle fatigue properties of Ni-based alloy with single hole
- Phase relationships in the Ce–Nd–B system at 773 K
- Notifications
- Erratum
- DGM
- CONFERENCES
- Imprint
Keywords for this article
Micro-arc oxidation;
Graphene;
Microstructure;
Property;
7050 high-strength aluminum alloy
Articles in the same Issue
- CONTENTS
- Original Contributions
- Accurate estimation of DLC thin film hardness using genetic programming
- Effects of graphene on the microstructure and properties of MAO coatings formed on AA7050
- Influence of nanostructured Cu on the mechanical properties of Cu–MWCNTs composites
- Effect of NbC on the microstructure, mechanical properties, and oxidation resistance of Ti(C,N)-based cermets
- Evolution of microstructure and wear-friction behavior of W-30 wt.% Cu nanocomposite produced via a mechanochemical synthesis route
- Comparison of the strengthening effects of Nb, V, and Ti on the mechanical properties of 20MnSi low-alloy steel
- Effects of Zn content on surface deformability and corrosion resistance of MgZnMnCa alloys
- Experimental investigation on low cycle fatigue properties of Ni-based alloy with single hole
- Phase relationships in the Ce–Nd–B system at 773 K
- Notifications
- Erratum
- DGM
- CONFERENCES
- Imprint
