Corrosion kinetics of calciumthermic hafnium

Research results of corrosion resistance of GFE-1 grade calciumthermic hafnium in steam and in medium with composition and parameters of WWER-1000 primary coolant are presented. On the basis of experimental and literature data the comparison of corrosion resistance of hafnium produced by calciumthermic and iodide technologies was carried out. During all experiments GFE-1 grade calciumthermic hafnium exhibited high corrosion resistance. That gives an opportunity to carry out further technological researches for justification of its application as construction material, which can operate reliably and effectively during long term in WWER-1000 reactor core.