This is a brief review of the problem of corrosion, the menace and its remedy. Corrosion costs not millions but billions of dollars in damages to equipment, accidents, failures of equipment, bridges, pipelines etc. Corrosion is the caustic attack by a metal/alloy by agents such as rain, polluted air, sea water or aggressive chemical agents. The process of corrosion and various methods of prevention have been discussed.

Iqra Zubair Awan and Abdul Qadeer Khan