Aluminum anodes are sacrificial metal components used to protect structures from corrosion, particularly in marine environments. They work by corroding themselves instead of the metal they are meant to protect, such as boats, piers, or underwater pipelines. This process is known as cathodic protection. These anodes are lightweight, durable, and effective in preventing rust and degradation. They are often used in conjunction with other materials, like zinc or magnesium anodes, depending on the specific environment and requirements. Regular inspection and replacement of aluminum anodes are essential for maintaining their protective function.