Abstract
In the previous report, the anodic behaviour of lead alloy anode for cathodic protection was studied in high temperature sea water of gas condensers at 44 to 52°C and also in the normal temperature sea water at a sea-water intake.
In this report, the corrosion resistance of lead alloy anode in high temperature sea water at 74 to 46°C and at high current density of 3 to 5A/dm2 was tested.
The results obtained are as follows:
1) Lead-silver (4%)-antimony (1%), and lead-silver (3%)-antimony (1%) alloy anodes were practically applicable to the high temperature sea water up to 70°C and at current density of 5A/dm2.
2) The main component of the film formed on lead alloy anode was β-PbO2 in nearly neutral (pH 8) seawater
