Introduction to Degradation
Corrosion
Deterioration of metals due to the reaction with the environment.
All corrosion reactions are electrochemical in nature.
Electrochemical reactions
Pair of reactions in which electron transfer occurs from one reaction to another.
Oxidation
The reaction where an electron is released. Aka. anodic reaction.
Reduction
The reaction where an electron is consumed. Aka. cathodic reaction.
Anode
The site at which oxidation takes place.
Cathode
The site at which reduction takes place.