Mass transfer of corrosion products and corrosion of steel in sodium at high hydrogen concentrations

Алексеев, В. В.; Kozlov, F. A.; Сорокин, А. П.; Varseev, E.V.; Orlova, E.A.; Torbenkova, I. Yu.

doi:10.1134/s0040601515100018

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…Sodium coolant is known to be less corrosive with respect to steel components than lead-based coolants. This is explained by the low solubility of iron in sodium (Subbotin et al 1970) and the processes of steel degradation in sodium are associated with the carbon lost by steel and by formation of complex chromic sodium oxides in the intergranular space of steels (Alekseev et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics of equilibrium states and approaches to analyzing the mass transport in metal-oxide systems

Lavrova

Legkikh

2020

NUCET

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Analysis of corrosion processes has a major role in justifying the reliability and safety of developed nuclear reactors of a new generation with heavy liquid metal coolants. An approach has been developed which allows practical conclusions to be made with respect to the processes in the given metal-oxide system based on analyzing state diagrams for these systems in the "oxidation potential – temperature" coordinates. The proposed approach relies on a long-term experience of experimental and computational studies concerned with the interaction of various steel grades with molten lead and lead-bismuth, as well as with the transport of metal impurities within these molten metals. The oxidation potential of a metal-oxide system is measured in experimental studies using oxygen activity sensors developed and manufactured at IPPE. The applicability of the proposed approach to analyzing the processes of mass transport in iron-oxygen, lead-oxygen, sodium-oxygen, and iron-water vapor systems has been demonstrated.

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Section: Introductionmentioning

confidence: 99%

Thermodynamics of equilibrium states and approaches to analyzing the mass transport in metal-oxide systems

Lavrova

Legkikh

2020

NUCET

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Physical Chemistry and Technology of Alkaline Liquid-Metal Coolant: A Retrospective-Perspective Look

2020

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Fundamental Investigatons in the Field of Nuclear Power Facilities Thermophysics: Achieved Results and Problems for Further Investigaton

Kuzina

Сорокин

2020

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants

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The results of experimental and theoretical calculations of fundamental research in the field of hydrodynamics, heat transfer, physical chemistry and nuclear power technology cooled by water and liquid metal coolants are analyzed, problems and tasks of further research are formulated. The effects and physical phenomena, laws and characteristics for a wide range of processes occurring in the first and second circuits of reactor facilities, including the flow part, the core, the heating equipment, the means of monitoring and cleaning coolants from impurities as applied to watercooled thermal neutron reactors, fast liquid metal reactors, fusion plants, etc. Particular attention in the field of hydrodynamics and heat transfer is given to studies of the heat transfer crisis in watercooled reactors, hydrodynamics of collector systems, stratification and mixing of jets, vibroacoustics, turbulent transfer in complex channels, heat transfer in the channels and assemblies of fast reactor fuel elements, contact thermal resistance, boiling in large volume and bundles of fuel rods, condensation of liquid metals. In the field of physical chemistry and the technology of liquid metal coolants, the types of impurities and the sources of their entry into the coolants for various nuclear power plants, the characteristics of the mass and heat transfer processes in the circuits and equipment of reactor facilities with liquid metal coolants (sodium, potassium, lithium, lead, bismuth lead), the efficiency of using various purification devices (cold and hot traps) and monitoring the state of impurities in coolants are analyzed.Problem questions and suggestions for further research are formulated. Information is given on the key thermophysical problems of basic research in relation to the development of innovative nuclear energy technologies: water-cooled reactors with supercritical water pressure, high-temperature fast reactors with sodium coolant for hydrogen production, thermonuclear installations, nuclear power plants with liquid-metal space coolants.

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Mass transfer of corrosion products and corrosion of steel in sodium at high hydrogen concentrations

Cited by 3 publications

References 8 publications

Thermodynamics of equilibrium states and approaches to analyzing the mass transport in metal-oxide systems

Thermodynamics of equilibrium states and approaches to analyzing the mass transport in metal-oxide systems

Physical Chemistry and Technology of Alkaline Liquid-Metal Coolant: A Retrospective-Perspective Look

Fundamental Investigatons in the Field of Nuclear Power Facilities Thermophysics: Achieved Results and Problems for Further Investigaton

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