论文和技术资料

Aluminum alloys 5000 series are widely used within the cabins of ships. These aluminum alloys are often joined via steel bolts. There is thus a concern that galvanic interactions will exacerbate corrosion of the aluminum alloys.

In this study, a model of the galvanic corrosion between aluminum alloy AA5083 and steel under atmospheric conditions was built. The Nernst-Plank equation and the extended Butler-Volmer equations were used in this model.

The potential distribution measured by Scanning Kelvin Probe (SKP) under a thin electrolyte was compared with the model calculation to validate it. The model output had good agreement with the experimental data both in bulk solution and under thin electrolyte conditions.