Corrosion facility layout (a) and its main components (b): 1 – high temperature furnace, 2 – furnace cover, 3 – electric heaters, 4 – NP2 nickel vessel, 5 – device for measuring redox potential, 6 – container for tellurium metal or nickel difluoride, 7 – sampler and thermocouple, 8 – alloy specimens, 9 – stick providing mechanical load on metallic specimens, 10 – beryllium reducer.