Galvanic Corrosion Simulator

Mode

Metal pair

Electrolyte

Salinity / humidity 60%

Status

Anode

–

Cathode

–

ΔE (V)

–

Corrosion rate

–

Anode loss

Elapsed

0 yr

Electrons flow from the less-noble metal (anode, lower electrode potential) through the external wire to the more-noble metal (cathode). Metal ions leave the anode into the electrolyte — that loss is the corrosion. Higher salinity raises electrolyte conductivity and speeds the reaction.

Corroded / rust Metal ion (anode → electrolyte) Electron (anode → cathode)

Activity series

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