Selective corrosion

Selective corrosion is a type of corrosion which attacks one single element of an alloy and dissolves the element in the alloy structure.

Selective corrosion
Selective corrosion is a type of corrosion which attacks one single element of an alloy and dissolves the element in the alloy structure. Consequently, the alloy’s structure is weakened.

Examples of selective corrosion:
Dezincification of unstabilised brass causes a weakened, porous copper structure. Also, graphitisation of gray cast iron, leaves behind a brittle graphite skeleton because of the dissolution of iron.





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