Authors & Affiliations

Orlova E.A., Orlov A.V.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia

Orlova E.A. – Cand. Sci. (Tech.), Associate Professor, Leading Researcher, A.I. Leypunsky Institute for Physics and Power Engineering. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: (484)399-42-34; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Orlov A.V. – Cand. Sci. (Phis.-Mat.), Researcher, A.I. Leypunsky Institute for Physics and Power Engineering.

Abstract

The community of corrosion processes of the structural materials SM in the liquid metals (LM) and their alloys is shown (impoverishment of syeel on nickel in cleared of LM oxygen, Cr segregation to a surface became in Cr2O3 enriched with LM oxygen at stability, a mass transfer of the SM components in not isothermal system, etc.) and an originality of the used methods of protection against corrosion (formation of coverings on the SM surface, corrosion inhibition, cleaning of LM of impurity, etc.). Solubility of the main components of steel increases in liquid metals among Na (K and their eutectic alloys) – Li–Pb–Mg. Nitride protection of steel against corrosion in Pb alloy – Mg in contact with nitride fuel is offered. When forming on a surface of steel of a sheeting of nitride (carbide) of zirconium on steel 16Cr12WMoSiVNbB outside a covering of redistribution of components of steel is absent. Also fluoride protection against corrosion in liquid magnesium, in contact with Freon, water environments, etc. is offered. It is shown that, as well as in earlier mentioned liquid metals, the most soluble in magnesium is nickel. At the same time in the presence in a gas phase over SiF4 magnesium on a surface of austenitic steel MgF2 is formed, and adjacent layers are enriched with silicon, and in quantity close to amount of the iron nickel left steel that it is possible to present as replacement of the vacancies formed owing to a nickel exit in magnesium.

Keywords
corrosion, protection, liquid metals, lithium, sodium, potassium, lead, magnesium, steel, nuclear power

Article Text (PDF, in Russian)

References

UDC 621.039.534

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants", 2016, issue 4, 4:22