ABSTRACT
Corrosion is a chemical or electrochemical process in which surface atoms of a solid metal either react with or dissolve in a substance that contacts the exposed surface. Corroding media are generally classified as aqueous or non-aqueous. The rate of steel corrosion in the atmosphere depends on geographical location, and can reach 1070 |Lim/yr. When rust depth reaches 1% of the thickness of the steel, the strength of the steel reduces by 5-10%. Throughout the world steel corrosion annually equals to 20-40% of its annual production [1]. The corrosion of all carbon steels is most devastating when the metal is subjected to an alternately wet and dry atmosphere in the presence of chloride salts. Typically this environment can be encountered on the underbodies of automobiles and trucks. The most con-
