Galvanic corrosion

Galvanic corrosion

Galvanic corrosion occurs when dissimilar metals are in the presence of an electrolyte, attacking the more anodic metal. Galvanic corrosion can occur not only when two components of dissimilar metals are in this state, but also on a single component where the individual grains of an alloy have different potentials. Most often, the electrolyte is a saline, acidic or alkaline solution or atmosphere.

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