Temperature Dependence of Oxide Film Thickness of Ni-based alloy in Deaerated High-Temperature Water

 Effects of temperature on corrosion of Ni-based alloys were studied as a mechanistic study of Low-potential stress corrosion cracking (LPSCC). The oxide films were formed on coupon specimens under simulated PWR primary water then analyzed by Auger electron spectroscope. Oxide film thickness increases with increasing temperature is similar tendency of the LPSCC growth rate. In this study, the similarity between SCC growth rates and the oxide film thickness were discussed.