Authors & Affiliations

Salaev S.V., Askhadullin R.Sh., Legkih A.Yu., Ivanov K.D., Lavrova O.V., Niyazov S.-A.S.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia

Salaev S.V. – Main Specialist, A.I. Leypunsky Institute for Physics and Power Engineering.
Askhadullin R.Sh. – Deputy Director of the Department of Physico-Chemical Technologies, Cand. Sci. (Tech.), Associate Professor, A.I. Leypunsky Institute for Physics and Power Engineering. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7(484)399-80-73; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Legkih A.Yu. – Leading Researcher, Cand. Sci. (Tech), A.I. Leypunsky Institute for Physics and Power Engineering.
Ivanov K.D. – Leading Researcher, Doct. Sci. (Tech), A.I. Leypunsky Institute for Physics and Power Engineering.
Lavrova O.V. – Leading Researcher, A.I. Leypunsky Institute for Physics and Power Engineering.
Niyazov S.-A.S. – Researcher, A.I. Leypunsky Institute for Physics and Power Engineering.

Abstract

The feature of heavy liquid metal coolants (HLMC), which includes lead and lead-bismuth, is their corrosion activity relative to the structural materials. To ensure the corrosion protection of structural steels the method passivation of steels surfaces is recommended. It consists in creating a thin protective film based on the oxides of steel components, i.e. in the oxidation of the surface. Passivation results and properties of the protective film (thickness, composition, permeability for steel components and coolant components, as well as changes in its properties over time) depend on many factors. Identification and justification of the acceptable and optimal range of conditions to operate of steels in heavy liquid metal coolant is the most important task in the design and operation of reactors of the new generation.
In the article the description and results of experimental development of the exploratory procedure based on a new approach to the study of the kinetics of the structural steels oxidation in the HLMC is presented. The new approach is the operational measurement of the integral rate of oxidation of steel components.

Keywords
dissolved oxygen, kinetics of oxidation, corrosion, structural steel, heavy liquid metal coolant, exploratory procedure, experiment

Article Text (PDF, in Russian)

References

UDC 621.039.534.6

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2018, issue 4, 4:10