Question on Atmospheric Corrosion

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   critical humidity      critical humidity      electrochemical      electrolyte      hygroscopic nature      pollutants      surface deposits   

Atmospheric corrosion is an process, requiring the presence of an . Thin film "invisible" electrolytes tend to form on metallic surfaces under atmospheric corrosion conditions, when a certain level is reached. For iron, this level is around 60%, in unpolluted atmospheres. The level is not a constant, it depends on the corroding material, the of corrosion products and and the presence of atmospheric .

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