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Corrosion implies to the irreparable damage or demolition of living tissues or materials due to electrochemical reactions. The automotive sector is rather bellicose and gives rise to metal corrosion in automotive parts due to high amount of pollution generated and due to de-icing salts. In power plants, corrosion is the principal agent leading to costly and critical downtimes. The water-steam circuits in fossil and nuclear power plants are inherently prone to corrosion, as metal components are constantly in contact with water. This review paper provides the overview of distinct types of corrosion in automotive and thermal power plant, their causes and measures to prevent them.