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Registration Number

0223U000496, 0122U001258 , R & D reports

Title

Development of nanotechnological methods to prevent corrosion of structural materials in thermal and nuclear power plants

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Head

Shtefan Viktoriia V., Доктор технічних наук

Registration Date

09-01-2023

Organization

National Technical University "Kharkiv Polytechnic Institute"

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 The object of research is the process of formation of heat of combustion of blast furnace coke under the influence of raw factors of its production and corrosion processes of structural materials of thermal and nuclear power plants. The purpose of the work is the development of scientific foundations and ideas regarding the influence of a complex of factors of coke production on the value of its heat of combustion and the development of methods of preventing corrosion of structural materials at thermal and nuclear power plants Research methods: voltammetry, electrochemical impedance spectroscopy, chronoamperometry, galvanochromometry, stationary and non-stationary electrolysis, X-ray fluorescence analysis, X-ray phase analysis, optical microscopy, Vickers method for measuring microhardness. A study of reactor materials for nuclear fuel shells, the production of which has been mastered at Ukrainian enterprises, as well as alternative materials for tolerant fuel shells, which are able to maximally prevent the development of severe accidents at nuclear power plants, has been conducted. Kinetic patterns of formation and anti-corrosion properties of composite coatings on reactor materials (zirconium alloys, chromium-nickel steels) were obtained depending on the composition of the coating and the stationary and non-stationary regime. The dependences of the protective properties of single-layer and multi-layer coatings with Zn-Ni and Cu-Zn alloys were obtained. The kinetic regularities of the electrodeposition of Zn-Ni and Cu-Zn alloys in polyligand electrolytes depending on the composition of the electrolyte and the mode of electrolysis were revealed. An assessment of the corrosion resistance of protective coatings on the reactor materials of light water reactor shells of nuclear power plants was carried out. The results showed that the rate of corrosion of composite coatings is several times lower than the rate of corrosion of structural materials.

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Bogoyavlenska Olena V.
Kanunnikova Nadiia O
Kovalenko Yuliya I
Leshсhenko Sergiі A
Lysenko Igor A
Miroshnychenko Denys V.
Maizelis Antonina O.

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2023-01-09