Abstract
The macrokinetic regularities of the reactivity of synthesized Ni–Re (20 and 60 wt %) alloys in a sulfuric acid solution (100 g/L, 25–40°C) during direct current polarization are studied using physicochemical methods. The phase composition of the synthesized alloys is determined by the formation of solid solutions as a function of the initial Ni/Re weight ratio. These are two types of nickel solid solutions (Ni16Re0.2 and Ni14Re0.9) and one rhenium solution (Ni1.1Re). These solid solutions are anodically oxidized in the sequence of their structural rearrangement Ni16Re0.2 → Ni14Re0.9 → Ni1.1Re with a combined transition of the metals into an electrolyte solution. These solid solutions provide the reduction of Ni3+ to Ni2+ due to the depolarization ability of rhenium, being their component.
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A. A. Palant, V. A. Bryukvin, O. M. Levchuk, A. V. Palant, and A. M. Levin, “A method for the electrochemical processing of metallic wastes of rhenium-containing superalloys,” RF Patent 2401312, Byull. Izobret., No. 28 (2010).
A. A. Palant, V. A. Bryukvin, O. M. Levchuk, and S. V. Palant, “A method for the electrochemical processing of metallic wastes of tungsten or rhenium,” RF Patent 2340707 (2008).
A. A. Palant, O. M. Levchuk, A. M. Levin, V. M. Paretskii, and V. A. Bryukvin, “Complex electrochemical processing of metallic wastes of the rheniumcontaining superalloy in sulfuric acid electrolytes,” Elektrometallurgiya, No. 7, 29–33 (2010).
A. M. Levin, A. A. Palant, V. A. Bryukvin, O. M. Levchuk, and V. M. Paretskii, “Complex electrochemical processing of metallic rhenium-containing wastes of the superalloy in nitric acid electrolytes,” Elektrometallurgiya, No. 8, 19 (2010).
A. M. Petrova, A. G. Kasikov, and P. B. Gromov, “Extraction of rhenium from wastes of hot-strength nickel-based complex alloys,” Tsvetn. Met., No. 11, 39–43 (2011).
V. A. Shipacev, “Some technological examples for rhenium isolation and purification from hot-strength alloys,” Khimiya v Interesakh Ustoichivogo Razvitiya, No. 20, 365–368 (2012).
V. A. Bryukvin, E. A. Skryleva, T. B. Elemesov, A. M. Levin, and A. O. Bol’shikh, “Mechanism of the anodic passivation of the Group VIII 3d metals in sulfuric acid solutions. I. Nickel,” Russian Metallurgy (Metally), No. 11, 876–879 (2013).
V. A. Bryukvin, V. T. D’yachenko, T. B. Elemesov, E. A. Skryleva, and A. O. Bol’shikh, “Reaction behavior of nickel in sulfuric acid solutions upon direct current polarization,” Tsvetn. Met., No. 8, 32–35 (2014).
E. A. Skryleva, V. A. Bryukvin, T. B. Elemesov, and A. M. Levin, “Passivation of nickel in sulfuric acid solutions during its polarization by direct current in the region of mixed potentials,” Russian Metallurgy (Metally), No. 11, 867–870 (2014).
H. Okamoto, “Ni–Re (nickel–rhenium),” J. Phase Equilib. Diffus. 33 (4), 346 (2012).
Manual on Electrochemistry, Ed. by A. M. Sukhotin (Khimiya, Leningrad, 1988).
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Dedicated to blessed memory of A.A. Palant, the author of the monograph “Metallurgy of Rhenium”
Original Russian Text © V.A. Bryukvin, T.B. Elemesov, O.M. Levchuk, A.O. Bol’shikh, 2016, published in Metally, 2016, No. 1, pp. 16–21.
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Bryukvin, V.A., Elemesov, T.B., Levchuk, O.M. et al. Reaction behavior of Ni–Re alloys during direct current polarization in sulfuric acid solutions. Russ. Metall. 2016, 12–17 (2016). https://doi.org/10.1134/S0036029516010079
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DOI: https://doi.org/10.1134/S0036029516010079