Corrosion of Lead Alloys at High Anodic Potentials

The corrosion of expanded grids of lead--antimony, lead--calcium, and lead--calcium--tin alloys maintained at constant high float charge was measured metallographically. Linear growth rates were determined for oxide growth on all three alloys. X-ray scans and maps served to locate the presence of PbSO/sub 4/ at the interfaces and in the bulk of the PbO/sub 2/ corrosion product. The results are consonant with corresponding high-temperature corrosion work.