[3C10-13] Corrosion

[3C12] SCC initiation behavior of Alloy 600 in simulated PWR primary water using blunt notch CT specimen

*Takuyo Yamada¹, Takumi Terachi¹, Yuuki Yamaoka¹, Koji Arioka¹ (1. INSS)

Keywords:Alloy 600, Simulated PWR primary water, SCC initiation behavior, Temperature dependence

Blunt notch CT test of 20%CW alloy 600 MA was performed in a simulated PWR primary water environment from 290 to 360°C. Temperature dependence of SCC initiation was evaluated from this method. And SCC initiation process was investigated using microscopic observations.