Analysis of the effect of pollution of component surfaces as a result of possible contact of fresh nuclear fuel with sea atmosphere on corrosion

Author:

Lys Stepan,

Abstract

Acquisition and analysis of the information was performed on possible effect of components of sea atmosphere in case of their precipitation on the assembly surfaces on the corrosion of structural materials of items of fuel assemblies (FAs) of water-water energetic reactor (VVER-1000) in their subsequent operation. The data is presented on static and dynamic tests of alloy E-110 at temperatures of 300–350 С in water and standard coolant of the reactor polluted with chlorides and iodine, as well as of alloy E-110 under special pollution of its surface with chlorides. It is demonstrated that in keeping the conditions of storage of fresh fuel, as well as the recommendations of the present work, its high corrosion resistance and operability in further operation is ensured.

Publisher

Lviv Polytechnic National University

Subject

General Medicine

Reference12 articles.

1. 1. Cox, B. (1973) Stress corrosion of zirconium alloys in neutral chloride. Corrosion. V.29. No.4. p. 157.

2. 2. Kosinov, V.A., Kuchin, O.P., Novikov, O.K., Osharina, L.V., Fedenko, V.I. (1983) Corrosion of alloy Zr - 1% Nb in distilled water containing ions of Cl or F at temperature 300 °С, IATF specialists meetings on «Influence of water chemistry on fuel element cladding behaviour in water cooled power reactors». Leningrad / USSR/ 6-10 June 1983. /IWGFPT/ 17. IAEA/ Vienna.

3. 3. Gerasimov, V.V., Gerasimova, V.V. (1989) Chloride and iodide corrosion of zirconium alloys. Pre-print. M., TSNIIatominform. (in Russian)

4. 4. Knittel, D.R. (1982) The effect of surface treatment on pitting potentials of zirconium in chloride solution. Corrosion. V. 38, No. 5, p. 140.

5. 5. Gerasimov, V.V. (1980) Corrosion of reactor materials., М., Atomizdat. (in Russian)

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