Question

How is corrosion different from rusting?

Answer 1

Corrosion	Rusting
Corrosion is the chemical, electrochemical, or other reactions that cause materials to deteriorate.	Rusting is a chemical process that results in the creation of a red or orange coating on the surface of metals. It is a part of corrosion.
Corrosion can occur on a variety of surfaces, including skin, wood, metals, and so on.	Surfaces of iron and its alloys are prone to rusting.
When a substance is exposed to air or certain chemicals, corrosion can develop.	When a metal is exposed to air and moisture, rust develops.
Metal oxides or salts are formed as a result of corrosion.	When rusting occurs, only iron oxide is generated.
Degradation is a type of corrosion that can occur in materials such as polymers and ceramics.	Only iron and its alloys are susceptible to rust or rusting.