Metallic corrosion is a natural process that occurs when metals react with their environment, leading to deterioration. This often happens when metals are exposed to moisture, oxygen, and other chemicals, resulting in the formation of rust or other corrosion products. Common examples include the rusting of iron and the tarnishing of silver. Corrosion can weaken structures and machinery, making it a significant concern in industries like construction and transportation. To combat corrosion, protective measures such as coatings, galvanization, and the use of corrosion-resistant alloys are often employed to extend the lifespan of metallic materials.