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Corrosion by Mind Map: Corrosion
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Corrosion

Wet Corrosion

Water Present

Electrolyte Present

Galvanic Corrosion

Presence of two dissimiliar metals

One metal more reactive than the other

Uniform Attack

Exposed to air

Uniform rust over entire surface

Concentration Cells

Water trapped

difference in oxygen

creates anode in cathode

Dry Corrosion

No water

High Temperature

Stress Cell

When hard worked or stressed metal

stressed areas become anodic

New node