Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. condition changing (processes)
6. surface or structural changes

Narrower term/s

• electrochemical corrosion
• atmospheric corrosion

Anotations

Scope note:

The deterioration of metal or other substances by chemical or electrochemical reaction resulting from exposure to weathering, moisture, chemicals, or other agents, causing the metal to change from a metallic state into a chemically more stable mineral compound known as a corrosion product.