Lavrova O.V., Legkikh A.Yu.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia
The result of structural steel oxidation in
any oxidizing environment depends on many parameters, for example, steel grade,
preliminary processing, temperature, oxidation potential and the exposure time
at the set parameters. Each of these parameters in its own way affects the
reaction rate, slowing it down or intensifying the process.
When steel
resistance in heavy liquid metal coolants (HLMC) is studied, the principal
attention is usually paid to the temperature factor, relative to which the
experimental results for the same steel grade are systemized and kinetic
dependencies are plotted. At the best, other factors are just recorded.
In the paper, the
qualitative analysis is given. It is dedicated to the influence of ambient
oxygen potential and spatial nonuniformity of the interacting media on
selective oxidation of some steel components (iron, chromium).
A theoretical
approach for oxidation of solid alloys is proposed. This model explains
selective oxidation of various elements.
1. Linetsky B.L., Krupin A.P., Opara B.K., Rakoch A.G.
Bezokislitel'nyy nagrev redkikh metallov i splavov v
vakuume [Oxidation-free
heating of rare metals and alloys in vacuum]. Moscow, Metallurgiya
Publ., 1985. 183 p.
2. Turkdogan E.T. Fizicheskaya
khimiya vysokotemperaturnykh protsessov [Physical chemistry of high-temperature processes]. Moscow, Metallurgiya Publ., 1985. 344 p.
3. Lavrova O.V., Legkikh A.Yu., Storozhenko A.N. Termodinamicheskiye
aspekty protsessa okisleniya metallicheskikh primesey i poverkhnostey staley v
rasplavakh tyazhelykh zhidkikh metallov [Thermodynamic
oxidation aspects of metallic impurities and steel surfaces in heavy liquid
metal melts]. Izvestiya vuzov. Yadernaya energetika, 2016, no. 4, pp. 102–113.
4. Lavrova O.V., Ivanov K.D., Niyazov S.-A.S.,
Askhadullin R.Sh., Legkikh A.Yu.
The role of external diffusion in the oxidation of structural steels in TZHMT [The
role of external diffusion in the oxidation of structural steels in heavy
liquid-metal coolants]. Voprosy atomnoy nauki i
tekhniki. Seriya: Yaderno-reaktornyye konstanty – Problems of Atomic Science
and Technology. Series: Nuclear and Reactor Constants, 2014, no. 1, pp. 69–78.
5. Lavrova O.V., Legkikh A.Yu. Termodinamika ravnovesnykh sostoyaniy i podkhody k analizu
massoperenosa v metallooksidnykh sistemakh [Thermodynamics of equilibria and approaches to
analyzing the mass transport in metal-oxide systems]. Izvestiya vuzov. Yadernaya energetika, 2020, no. 2, pp. 39–51.
6. Handbook on Lead-bismuth Eutectic Alloy and Lead Properties,
Materials Compatibility, Thermal-hydraulics and Technologies. 2015 Edition. NEA,
No. 7268. OESD, 2015. 949 p.
7. Beznosov A.V., Bokov P.A., Volkov N.S., Zhuravleva
O.R. Kontrol' kontsentratsii
kisloroda v svintsovom teplonositele za schot padayushchikh struy i kapel' na
yego svobodnuyu poverkhnost' [Oxygen concentration control
in a lead coolant due to falling jets and droplets on its free surface]. Trudy NGTU im. R.Ye. Alekseyeva [Proceedings
of the NNSTU n.a. R.E. Alekseev], 2017, no. 4 (119), pp. 66–71.
8. Alekseev V.V., Orlova E.A., Kozlov F.A.,
Torbenkova I.Yu., Kondratiev A.S. Raschetno-teoreticheskiy
analiz protsessa oksidirovaniya stali v svintsovom teplonositele [The theoretical and calculation analysis of oxide formation process
on steel in lead coolant]. Voprosy atomnoy nauki i
tekhniki. Seriya: Yaderno-reaktornyye konstanty – Problems of Atomic Science
and Technology. Series: Nuclear and Reactor Constants, 2014, no. 1, pp. 69–78.
9. Kulikov I.S. Termodinamika
oksidov. Spravochnik [Thermodynamics
of oxides. Guide]. Moscow, Metallurgiya Publ., 1986. 344 p.
10. Termodinamicheskiye svoystva individual'nykh veshchestv. Spravochnoye izdaniye v chetyrekh tomakh. Pod red. V.P. Glushko [Thermodynamic properties of individual substances. Reference edition
in four volumes. Ed. V.P. Glushko]. Moscow, Nauka Publ., 1978.
11. Khimicheskiye nauka i obrazovaniye v Rossii. Termodinamicheskiye
svoystva individual'nykh veshchestv T. 5 [Chemical science and education in Russia. Thermodynamic properties of
individual substances. Vol. 5]. Available at:
http://www.chem.msu.su/rus/tsiv/ (accessed 20.05.2022).
12. Yershov G.S., Chernyakov V.A. Stroyeniye i svoystva zhidkikh i
tverdykh metallov [Structure and properties of
liquid and solid metals]. Moscow, Metallurgiya Publ., 1978. 248 p.
13. Golos O.A., Nikolkin V.N., Barybin A.V., Khvostov S.S. K metodike issledovaniya vynosa i massoperenosa produktov korrozii
staley v svintse [The technique of outflow and mass
transfer investigation for steel corrosion products in lead]. Voprosy atomnoy nauki i tekhniki. Seriya: Yaderno-reaktornyye
konstanty – Problems of Atomic Science and Technology. Series: Nuclear and
Reactor Constants, 2017, Special
issue, pp. 44–51.
14. Butakov D.S., Golosov O.A., Nikolkin V.N., Barybin A.V., Khvostov
S.S. Metodicheskiy podkhod pri issledovanii massoperenosa produktov korrozii
staley v rasplavlennom svintse [Methodological approach
in the study of mass transfer of corrosion products of steels in molten lead]. Vestnik dimitrovgradskogo inzhenerno-tekhnologicheskogo instituta – Bulletin of the Dimitrovgrad Institute of Engineering and
Technology, 2019, no. 1 (18), pp. 22–28.
15. Martinelli L. et al. Oxidation mechanism of a Fe–9Cr–1Mo steel by
liquid Pb–Bi eutectic alloy. Corrosion Science, 2008, no. 50, pp. 2523–2536.
