Galvanic Corrosion Protection of Titanium Alloys in Ships

Galvanic corrosion is very easy to occur when titanium is connected to steel and copper. The protective measures include:
1. The pipe is subjected to thermal oxidation, micro-arc oxidation, and anodization, and an oxide layer or ceramic layer is formed on the metal surface to achieve insulation. When the titanium tube is oxidized, the formed oxide film can reduce the cathodic polarization effect of the titanium alloy by 80% to 90%, and the life of the oxide film is equal to the life of the titanium tube.
2. Use asphaltene rubber (12910, 25.00, 0.19%) for insulation treatment at the interface between pipes, valve nozzles and steel and copper equipment;
3. Protect the middle flange at the connection between the titanium tube and the stainless steel nozzle.
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