Galvanic Corrosion

Galvanic corrosion occurs when two different metals are in electrical contact in the presence of an electrolyte, such as water or moisture. The more active metal (anode) corrodes faster, while the less active metal (cathode) is protected. This process is driven by a potential difference between the metals, causing an electron flow that accelerates corrosion of the anode. It often happens in plumbing, marine environments, or metal structures exposed to weather. Prevention includes using similar metals, insulating contact points, or applying protective coatings to reduce the electrochemical reaction and extend the life of the materials.