When two different types of metals are joined together, a process called ELECTROLYSIS can occur. Also known as galvanic corrosion, electrolysis happens when two dissimilar metals are directly connected, causing the lesser of the two metals to corrode. For the process to occur, the two metals must also come into contact with a conductive electrolyte. Ultimately, this can result in damage to the joint, causing the metals to fail.

 Several factors contribute to electrolysis when joining dissimilar metals, including differences in electrical potential, composition, and exposure to moisture or other corrosive substances. Let's take a closer look at each of these factors and how they can impact the durability of the joint.