Why would higher levels of atmospheric humidity increase corrosion on carbon steel yet not affect titanium?

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Mechanical Engineering

Why would higher levels of atmospheric humidity increasecorrosion on carbon steel yet not affect titanium?

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CORROSION PRINCIPLES OF CARBON STEEL IN ATMOSPHERE we know that humidity level is not constant and depends on the corroding material the tendency of corrosion products and surface deposits to adsorb moisture and the presence of atmospheric pollutants In absence of the pollutants in an atmosphere with relative humidity of least 70 the carbon steel corrodes with formatting in time of FeOH2 after the electrochemical mechanism conform to the reactions Anodic reaction 2Fe 2Fe 4e 2 1 Cathodic reaction O2 2H2O 4e 4OH 2 The products of these reactions combine forming ferrous hydroxide a compound insoluble at neutral pH that deposits on the metal surface 2Fe 4OH 2FeOH 3 In presence of the oxygen the ferrous hydroxide oxidizes and forms the rust As we know that See Answer

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