scholarly journals Corrosion Behavior and Structure of Plasma Electrolytic Oxidation Coated Aluminum Alloy

2017 ◽  
pp. 6788-6800 ◽  
Author(s):  
Y Zhang ◽  
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
Plasma Electrolytic Oxidation ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

Corrosion behavior of ZnO-reinforced coating on aluminum alloy prepared by plasma electrolytic oxidation

2019 ◽  
Vol 374 ◽  
pp. 1015-1023 ◽  
Author(s):  
Qian Huang ◽  
Zhongzhen Wu ◽  
Hao Wu ◽  
Shunping Ji ◽  
Zhengyong Ma ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
Plasma Electrolytic Oxidation ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

scholarly journals Surface Modification of Aluminum 6061-O Alloy by Plasma Electrolytic Oxidation to Improve Corrosion Resistance Properties

Coatings ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 4
Author(s):  
Dmitry V. Dzhurinskiy ◽  
Stanislav S. Dautov ◽  
Petr G. Shornikov ◽  
Iskander Sh. Akhatov
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Aluminum Alloys ◽  
Plasma Electrolytic Oxidation ◽  
Electrochemical Impedance ◽  
High Strength ◽  
Electrolytic Oxidation ◽  
Coating Layers ◽  
Plasma Electrolytic ◽  
High Strength Aluminum Alloys

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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