The model representation is similar to a Galvanic Cell where the seawater is the electrolyte and the anode and cathode plates are the metal of the structure and CP system

The basis of the BEASY corrosion control simulation tools is a fundamental model of the galvanic corrosion process. The model represents:

• The electrochemical reaction (polarisation) on the metal surfaces
• The electric fields in the surrounding electrolyte
  

Polarisation/Electrochemical Model

The software includes a general model of the polarisation properties of the materials which can represent how the polarisation properties vary with time and the buid up of calcarius deposits on the metal surfaces.

Both anodic and cathodic polarisation response is incorporated in the model. A polarisation database is
provided to manage the data and to enable new materials
to be easily added.