Metals corrode when it is exposed to moisture and certain chemicals, elements, or oxidizing agents in an environment. Corrosion is a natural process and can cause the metal to degrade and decrease its functionality as well as its aesthetics. Once the smallest hint of corrosion appears on metal, it will require repair and maintenance to prevent it from collapsing and causing accidents. No metal can escape corrosion but it can be avoided. Selecting the right metal type, applying a protective coating and modification in the design are just some of the ways that one can prevent metal corrosion. Here are other ways on how to avoid corrosion on metals.

source: https://www.goldplating.com/blogs/news/ways-to-avoid-corrosion-on-metals