Siberian Federal University 
- Issue
- Journal of Siberian Federal University. Engineering & Technologies. 2010 3 (2)
- Authors
- Lyndina, Elena N.; Drozdova, Tatyana N.; Ponomareva, Svetlana V.; Biront, Vitaly S.; Gusev, Alexander O.; Simakov, Dmitry A.
- Contact information
- Lyndina, Elena N. : Siberian Federal University , 79 Svobodny, Krasnoyarsk, 660041 Russia; Drozdova, Tatyana N. : Siberian Federal University , 79 Svobodny, Krasnoyarsk, 660041 Russia; Ponomareva, Svetlana V. : Siberian Federal University , 79 Svobodny, Krasnoyarsk, 660041 Russia; Biront, Vitaly S. : Siberian Federal University , 79 Svobodny, Krasnoyarsk, 660041 Russia , e-mail: VBiront@sfu-kras.ru; Gusev, Alexander O. : Engineering & Technology Center, «RUS-Engineering» LLC Krasnoyarsk Office , 37 Pogranichnikov st., Krasnoyarsk, 660111 Russia; Simakov, Dmitry A. : Engineering & Technology Center, «RUS-Engineering» LLC Krasnoyarsk Office , 37 Pogranichnikov st., Krasnoyarsk, 660111 Russia
- Keywords
- corrosion; the anodes; the mechanism of destruction; oxides
- Abstract
Corrosion attack of metal alloys used as anodes during aluminum electrolysis is investigated. The mechanism of destruction, which is based on the interaction of the metal surface with active oxygen liberated at the anode during electrolysis, is discussed. Further interaction of unstable oxide with the molten fluorides leads to the fluorination of the metal oxide and its removal into the electrolyte. The mechanism of the process examined is proposed and experimentally confirmed. It is shown that the reaction diffusion and the chemical interaction of iron with oxygen are processes that result in the high rate of degradation.
- Pages
- 177-188
- Paper at repository of SibFU
- https://elib.sfu-kras.ru/handle/2311/1675
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).