Equipment
SSRT autoclave with scratching device for mechanical and corrosion tests-II.part
An autoclave with recirculation loop is dedicated equipment for exposure of specimen in a pure water at high temperatures up 300°C. Due to high pressure (max 170 bar) the water remains in liquid state. Such environment is characteristic for the primary cooling loop of the nuclear boiling water reactor. The autoclave is primarily intended for the study of stress corrosion cracking of metals that appear in the primary cooling loop. It has 3L titanium pressure vessel with an integrated screw-driven tensile machine with max. load of 30 kN that is suitable for slow tests such as SSRT, const. load, const. elongation etc. Recirculation loops is responsible for controlling the chemistry of the circulating water (oxygen conc. 20-3000 pppb, conductivity below 0.1 uS/cm) and flow rate (0.2-0.3 L/min and pressure (up to 170 bar). Autoclave has 4 feedthroughs for wiring sample(s) in the autoclave with outer electrochemical instruments, it contains also Cu/Cu2O/ZrO2 solid-state reference electrode.
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