Atmospheric corrosion of mild steel - Part II - Marine atmospheres

This paper summarizes the results obtained in the MICAT project for mild st eel specimens exposed for 1 to 4 years in 47 marine atmospheres in the Iber o-American region. All these atmospheres were characterized for climatology , pollution and corrosion rates according to ISO standards. Complementary m orphological and chemical characterization of the steel corrosion product l ayers (SCPLs) formed in these atmospheres was carried out. The overall anal ysis of results contributes to understanding, in a systematic way, how atmo spheric corrosivity categories can be correlated with corrosion mechanisms. Special aspects of the atmospheres, from pure to mixed marine, were consid ered.