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JOURNALS // Teplofizika vysokikh temperatur // Archive

TVT, 2018 Volume 56, Issue 4, Pages 533–542 (Mi tvt10809)

This article is cited in 2 papers

Thermophysical Properties of Materials

Application of liquid solution models for the prediction of corrosion phenomena in the $\rm Na$$\rm K$ melt

V. P. Krasin, S. I. Soyustova

Moscow Polytechnic University

Abstract: With the mathematical tool of pseudo-regular solutions, we calculated the solubility of $\rm Fe$, $\rm Cr$, $\rm Ni$, $\rm V$, $\rm Mn$, and $\rm Mo$ in eutectic $\rm Na$$\rm K$ melt and compared the calculation results with the available experimental data in the literature on the mass transfer of austenitic chrome-nickel steel components in a sodium-potassium loop in nonisothermal conditions. We show that the Wagner parameters of the interaction between oxygen and transition metal might be applied to predict the corrosion behavior of the construction materials in sodium-potassium melt under the presence of oxygen impurity. We present the calculation results of the threshold oxygen concentration required to form ternary sodium oxides with transition metals $(\rm Fe$, $\rm Cr$, $\rm Ni$, $\rm V$, $\rm Mn$, $\rm Mo)$ in conditions in which the pure metal is in contact with eutectic $\rm Na$$\rm K$ melt.

UDC: 536.24:621.039.53/54

Received: 25.01.2017
Accepted: 28.06.2017

DOI: 10.31857/S004036440003636-3


 English version:
High Temperature, 2018, 56:4, 519–526

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© Steklov Math. Inst. of RAS, 2025