Plasma Electrolytic Oxidation PEO or another name called Micro-arc Oxidation MAO can be used to enhance surface properties of light metallic alloys. By optimize the additive concentration in electrolyte, the corrosion resistance and wear of aluminium alloy can be dramatically improved. Our PEO works shown that the lifetime of PEO treated Al alloy can be over 5000 hours in the salt spraying test and the wear rate has been significantly reduced as hard alumina phase has formed with higher hardness.
The scientific research work is published in Surface & Coatings Technology 409 (2021) 126885.
Another outstanding work is that the lifetime of magnesium alloy with two-steps PEO treatment can be over 4200 hours in the salt spraying test.
The scientific research work is published in
Surface & Coatings Technology 433 (2022) 128148 .
Our research works shows that PEO is the versatile technique to enhance both the mechanical and chemical properties of light metallic alloys so as to be able to cope with complex service environment.
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