Preparation and properties of MAO self-healing anticorrosion film on 5B70 Al alloy
Mingjin Wu,
Feng Jiang
Abstract:Micro-arc oxidation (MAO) was a new surface treatment technology for Al alloys. However, the MAO ceramic film could not provide long-term protective performance owing to its inherent porous structure. In this work, a new type of CeO2-sealed GO/Al2O3 composite film with excellent corrosion resistance on 5B70 Al alloy was prepared by integrating MAO and the hole sealing technique. The experimental results indicated that the loose and porous MAO ceramic film could serve as a "shield" and a "reservoir", respective… Show more
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