Investigation of corrosion properties and highspeed dissolution of steels Cт3, Ст45 and 12Х18Н10Т in coarse-grained and ultra fine-grained conditions

Abstract

Researches of corrosion behavior and high-speed dissolution carbon and stainless steels from coarse-grained(CG) and ultra fine-grained (UFG) structures are shown. It determined, steel in UFG condition more corrosion active, than their CGanalogs. It is detected, steel with UFG structure in 5% solute NaClare ionized with the big current densities, than from CG structure. At polarization of steels in 5%, 8%, 15% solutes NaNO3 ionization of steels with CG structure occurs to the big current densities and at more negative potentials, than steels with UFG structure.