Surface Modification of Aluminum 6061-O Alloy by Plasma Electrolytic Oxidation to Improve Corrosion Resistance Properties
Source abstract
Abstract
In the present investigation, the plasma electrolytic oxidation (PEO) process was employed to form aluminum oxide coating layers to enhance corrosion resistance properties of high-strength aluminum alloys. The formed protective coating layers were examined by means of scanning electron microscopy (SEM) and characterized by several electrochemical techniques, including open circuit potential (OCP), linear potentiodynamic polarization (LP) and electrochemical impedance spectroscopy (EIS). The results were reported in comparison with the bare 6061-O aluminum alloy to determine the corrosion performance of the coated 6061-O alloy. The PEO-treated aluminum alloy showed substantially higher corrosion resistance in comparison with the untreated substrate material. A relationship was found between the coating formation stage, process parameters and the thickness of the oxide-formed layers, which has a measurable influence on enhancing corrosion resistance properties. This study demonstrates promising results of utilizing PEO process to enhance corrosion resistance properties of high-strength aluminum alloys and could be recommended as a method used in industrial applications.
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Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Corrosion Behavior and Inhibition · Anodic Oxide Films and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
The Center for Design, Manufacturing and Materials, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, Russia
References (32)
Show source-provided references
1. ASM Handbook Properties and Selection: Nonferrous Alloys and Special-purpose Materials (1990). ASM International Committee Handbook, ASM International. [2nd ed.].
2. Local dissolution phenomena associated with s-phase (Al2CuMg) particles in aluminum alloy10.1149/1.1837874 ↗
3. Localized corrosion of AA 2024 T351 aluminum alloy in chloride media10.1016/S0010-938X(98)00116-4 ↗
4. Mechanistic studies of the corrosion of 2024 aluminum alloy in nitrate solutions10.1149/1.1590327 ↗
5. In Situ confocal laser scanning microscopy of AA 2024-T3 corrosion metrology I: Localized corrosion of particles10.1149/1.1764780 ↗
6. The electrochemical characteristics of bulk-synthesized materials10.1149/1.1392654 ↗
7. Corrosion behaviour of different tempers of aluminium alloy10.1016/j.electacta.2004.01.046 ↗
8. PEO coating containing copper: A promising anticorrosive and antifouling coating for seawater application of AA 707510.1016/j.surfcoat.2020.125774 ↗
9. Hard anodizing: Studies of the relation between anodizing conditions and the growth and properties of hard anodic oxide coatings
10. Corrosion protection of light alloys using low pressure cold spray10.1007/s11666-011-9729-7 ↗
11. Wear protection of Al383/SiO2 metal matrix composites by plasma electrolytic oxidation (PEO) process10.4271/2010-01-0024 ↗
12. (2020, November 01). MAGPULS Bipolar-Pulsed Power Supplies. Available online: https://magpuls.de/en/puls-plasma-generators-unipolar.html.
13. Richelly, L.N., Ferreira, M., and Clodomiro, A. (2020). Plasma species and coating compositions in aluminum treated by PEO using shot square pulse. Mater. Res., 23.10.1590/1980-5373-mr-2019-0444 ↗
14. A review of recent work on discharge characteristics during plasma electrolytic oxidation of various metals10.1080/09506608.2018.1466492 ↗
15. Electrolytic oxidation coatings with fungicidal properties10.1080/02670844.2018.1441659 ↗
16. Effects of electrolytes variation on formation of oxide layers of 6061 Al alloys by plasma electrolytic oxidation10.1016/S1003-6326(08)60366-0 ↗
17. Plasma electrolysis for surface engineering10.1016/S0257-8972(99)00441-7 ↗
18. Production of hard and heat-resistant coatings on aluminium using a plasma micro-discharge10.1016/S0257-8972(99)00421-1 ↗
19. Correlation between plasma electrolytic oxidation treatment stages and coating microstructure on aluminum10.1016/j.surfcoat.2014.11.007 ↗
20. Gulden, F., Reinhold, B., Gramstat, S., Stich, A., Tetzlaff, U., and Höppel, H.W. (2019, January 2). Investigation of the run-in and corrosion behavior of a PEO-coated aluminum brake disc. Proceedings of the 10th International Munich Chassis Symposium 2019, Wiesbaden, Germany.10.1007/978-3-658-26435-2_43 ↗
21. Plasma processing of aluminum alloys to promote adhesion: A critical review10.7569/RAA.2017.097303 ↗
22. Thermo-physical properties of plasma electrolytic oxide coatings on aluminium10.1016/j.surfcoat.2004.09.037 ↗
23. Dahm, K., Black, A., and Shrestha, S. (2009, January 9–10). Dearnley, plasma electrolytic oxidation treatment of aluminium alloys for lightweight disc brake rotors. Proceedings of the IMechE Conference on Braking, New York, NY, USA.
24. (2020). ASTM E1588-20, Standard Practice for Gunshot Residue Analysis by Scanning Electron Microscopy/Energy Dispersive X-ray Spectrometry, ASTM International.
25. Osseointegration of titanium and its alloys by anodic spark deposition and other electrochemical techniques: A review
26. The influence of electrochemistry parameters on some physico-chemical properties of microarc oxidation biocompatible coatings on titanium
27. Influence of combined shot peening and PEO treatment on corrosion fatigue behavior of 7A85 aluminum alloy10.1016/j.apsusc.2019.04.242 ↗
28. DeForce, B., Eden, T., Potter, J., Champagne, V., Leyman, P., and Helfritch, D. (2007, January 17–21). Application of aluminum coatings for the corrosion, protection of magnesium by cold spray. Proceedings of theTri-Service Corrosion Conference, Denver, DC, USA.
29. The mechanism of hydrogen evolution during anodic polarization of aluminium10.1016/j.electacta.2015.08.076 ↗
30. Toward a nearly defect-free coating via high-energy plasma sparks10.1038/s41598-017-02702-3 ↗
31. Microstructure evolution during plasma electrolytic oxidation and its effects on the electrochemical properties of AZ91D Mg alloy10.1149/1.3604947 ↗
32. Reflections on the history of electrochemical impedance spectroscopy10.1016/j.electacta.2005.02.107 ↗