MODEL FOR ASSESSMENT OF CORROSION DAMAGE OF STEEL SHELL STRUCTURES IN CONTACT WITH CHEMICALLY ACTIVE PRODUCTS (ON THE EXAMPLE OF RAILWAY TANKS)

Abstract

As research has shown, the formation of products of corrosion damage to steel shell structures, for example, railway tanks, operated for a long time in direct contact with aggressive mixtures (acids, alkalis, etc.), the decisive influence on the nucleation and accumulation of oxide layers has the forces of chemical adhesion. Chemically active products transported in tanks or for storage in tanks and various containers are a source of oxygen entering the reaction zone. At the same time, the higher the oxidation potential of such an environment, i.e., the greater the content of free oxygen or in the form of compounds, the more significantly (other things being equal) it contributes to the formation of oxides on the surface metal.