Plasma electrolytic oxidation (PEO): An alternative to conventional anodization process

Abstract

Due to the need to develop methods that optimize the surface properties of lightweight alloys such as aluminum, titanium, and magnesium and align with contemporary requirements of the 21st century, such as enhanced environmental and sanitary efficiency, the plasma electrolytic oxidation (PEO) process stands out as a comprehensive solution. This process can develop oxide coatings on the mentioned alloys, which exhibit superior physical and chemical properties compared with conventional methods. Since 2010, research in this area has been conducted with real-world applications. Recent studies have adopted experimental design approaches to optimize parameters to reduce operational costs and make the technology more accessible. The present study conducted a comparative analysis between treatments performed by conventional methods and by plasma processes, highlighting the most promising results.