Kazakovtseva, N. A. Mazannikov, M. V. Nikitina, E. V. Karfidov, E. A. Potapov, A. M.
Published in
Russian Metallurgy (Metally)
AbstractThe corrosion electrochemical behavior of molybdenum depending on the melt composition (imitators of spent nuclear fuel (SNF) components) in an oxidizing atmosphere is studied. Thermodynamic analysis of possible corrosion processes is performed using the HSC Chemistry 9.0 software in the Equilibrium calculations module. The rate of metal co...
Popel’, P. S. Sidorov, V. E. Brodova, I. G. Calvo-Dahlborg, M. Dahlborg, U.
Published in
Russian Metallurgy (Metally)
AbstractThe modern concepts of the structure of liquid metals and alloys are considered. Several types of microinhomogeneity and microheterogeneity are shown to exist in liquid metal solutions. Their structural state changes as a result of variations in composition, history, temperature, and pressure or the influence of various external actions. Up...
Vetrova, D. A. Kuznetsov, S. A.
Published in
Russian Metallurgy (Metally)
AbstractThe standard rate constants of charge transfer for the Ti(IV)/Ti(III) redox couple in the KCl–KF(10 wt %)–K2TiF6 melt are determined by cyclic voltammetry. The activation energy of charge transfer is calculated. The influence of strongly polarizing cations Mg2+, Ca2+, Sr2+, and Ba2+ on the charge transfer kinetics in the Ti(IV)/Ti(III) redo...
Aleksandrov, A. A. Dashevskii, V. Ya.
Published in
Russian Metallurgy (Metally)
AbstractA thermodynamic analysis of the oxygen solutions in the hafnium-containing Fe–Co melts is performed. The equilibrium constants of the deoxidation reaction of iron-cobalt melts with hafnium, the activity coefficients at infinite dilution, and the interaction parameters for melts differing in composition are determined. The dependences of the...
t. bell, anthony m. backhouse, daniel j. deng, wei eales, james d. kilinc, erhan love, katrina rautiyal, prince rigby, jessica c. stone, alex h. vaishnav, shuchi
...
Reproducible preparation of lithium tetraborate fused beads for XRF analysis of glass and mineral samples is of paramount importance for analytical repeatability. However, as with all glass melting processes, losses due to volatilisation must be taken into account and their effects are not negligible. Here the effects of fused bead melting time hav...
Li, Hui Jia, Lei Wang, Jing Liang, Jing-long Yan, Hong-yan Cai, Zong-ying Wang, Le
Published in
High Temperature Materials and Processes
The dissolution characteristics and electrochemical reduction mechanism of oxides of refractory metals ZrO2, HfO2 and MoO3 in NaCl-KCl-NaF melts are studied. The results shows that there are no chemical reaction of ZrO2 and HfO2 in NaCl-KCl-NaF melts, the dissolution of MoO3 is chemically dissolved, and MoO3 reactwith melts to form Na2Mo2O7. The re...
Aleksandrov, A. A. Dashevskii, V. Ya. Leontyev, L. I.
Published in
Steel in Translation
AbstractNi–Co alloys are broadly used in various industries. One of the harmful impurities in these alloys is oxygen, which is found in metals in dissolved form or as nonmetallic inclusions. One of the main tasks of melting out these alloys is to produce a ready-made metal with a minimal oxygen concentration. In the case of the metal melt’s complex...
Aleksandrov, A. A. Dashevskii, V. Ya.
Published in
Russian Metallurgy (Metally)
Abstract—Thermodynamic analysis of the influence of aluminum on the oxygen solubility in the Fe–Co–Cr melts at 1873 K is performed. Aluminum in the Fe–Co–Cr melts is characterized by a high deoxidation ability. At a low aluminum content in these melts, it practically does not affect the oxygen content, which is determined by the chromium content. A...
Aleksandrov, A. A. Dashevskii, V. Ya.
Published in
Russian Metallurgy (Metally)
AbstractA thermodynamic analysis of the influence of titanium on the oxygen solubility in Fe–Co–Cr melts at 1873 K is performed. The dependences of the oxygen solubility in Fe–Co–Cr melts on the titanium content are calculated. The titanium content at which the deoxidation reaction mechanism is changed (Cr2O3 \documentclass[12pt]{minimal} \usepacka...
Kharina, E. A. Kaichenkova, R. Yu. Dedyukhin, A. S. Shchetinskii, A. V. Yamshchikov, L. F. Volkovich, V. A.
Published in
Russian Metallurgy (Metally)
AbstractThe experimental data on determining the equilibrium potentials of a number of rare-earth metals, namely, lanthanum, neodymium, praseodymium, gadolinium, holmium, and erbium, in a eutectic mixture of lithium, potassium, and cesium chlorides are used to find the temperature dependences of the conventional standard potentials of these metals ...
