Analysis of water radiolysis in relation to stress corrosion cracking of stainless steel at high temperatures – Effect of water radiolysis on limiting current densities of anodic and cathodic reactions under irradiation

Oxide formation and conversion on carbon steel in mildly basic solutions

“…Studies on oxide film formation/corrosion processes as a function of redox conditions are rare at this pH. Corrosion rate measurements have also been limited to the low corrosion potentials (E CORR ) expected in pure water systems, whereas considerably higher E CORR values would be expected in radiolytically decomposed water [29,30]. In addition, a corrosion study under these extended conditions will fill the gap in existing data and provide insight into the mechanistic details of steel corrosion.…”

Electrochemical behaviour of 316L stainless steel exposed to representative chemistry in pressurised water reactors under proton radiation

“…Concerning Irradiated Assisted Stress Corrosion Cracking (IASCC), Macdonald et al [22] and Urquidi-Macdonald et al [23] have shown that with the increasing concentration of H 2 , ECP will be shifted to a more negative value: even with low concentration of H 2 , the ECP is lower than À230 mV (SHE) in PWR primary conditions. On the other hand, according to Ishigure et al [24], ECP can be increased importantly in BWR hydrogen water chemistry conditions depending on factors as dose rate, flow rate and water chemistry. So, ECP measurement under proton irradiation has been chosen as the main approach to study the 316 stainless steel in representative primary PWR chemistry in order to get a better understanding of the corrosion issues inside the PWRs.…”

Roles of adsorbed OH and adsorbed H in the oxidation of hydrogen and the reduction of UO2+2 ions at Pt electrodes under non-conventional conditions

“…It is known [1,2] that dissolved hydrogen protects the structural materials from the oxidising species produced by water radiolysis, and at the same time, hydrogen gas dissolves the CRUD (Chalk River unidentified deposits) at the end of a cycle in PWRs. Furthermore, since dissolved hydrogen may contribute to the cracking of zircaloy claddings [3][4][5], the corrosion of steam generator tubes [6,7] and the deposition of CRUD [8,9], it is necessary to understand the electrochemical oxidation behaviour of dissolved hydrogen at a high temperature.…”