2013 Volume 62 Issue 6 Pages 208-217
Carbon steel, titanium and copper are thought to be candidate materials for an overpack used for the geological disposal of radioactive wastes. In this paper, electrochemical and corrosion studies on the materials in simulated geological disposal environments are reviewed. Deaerated or aerated, single or mixed solutions of NaCl, Na2SO4 and NaHCO3 and bentonite soaked with these solutions have been used as simulated geological disposal environments. Anodic and cathodic polarization curves, corrosion rates, surface films, general corrosion, pitting, crevice corrosion, hydrogen embrittlement, and stress-corrosion cracking of the materials in the environments have been examined.