RP 1423 - Specifications To Prevent Galvanic Corrosion In Aluminum Walk-In Van Bodies: Definitions

Galvanic Couple-  A pair of dissimilar conductors capable of acting together as an electrical source when brought into contact with (or through) an electrolyte.

Electrolyte-  A substance that, when dissolved in a suitable solvent or when it facilitates fusing, becomes an ionic conductor. Salt is a typical electrolyte.

Conductive Path-  Corrosion cannot occur unless the dissimilar metals are electrically connected. For example, a bolt that holds pieces of aluminum and steel together is the most common conductive path. There must also be a path for ions to flow from the anode to the cathode. This is usually provided by the electrolyte.