Effect of temperature on flow accelerated corrosion property of blanket structural material

Nakajima, Motoki; Hirose, Takanori; Gwon, H.; Tanigawa, Hisashi; Kawamura, Yoshinori

As the primary candidate of ITER-TBM of Japan, development of WCCB TBM is being performed. In this blanket, the high temperature pressurized water was used as the coolant. Therefore it is necessary to understand the corrosion mechanism in high temperature pressurized water. Additionally, it is also required that understanding of corrosion properties of temperature ranging from 543K to 593K, because inlet and outlet temperatures of TBM are 543K and 593K, respectively. In this study, the corrosion test was performed at temperature ranging from 543K to 593K in deaerated (20ppb DO) and oxygen-saturated (8ppm DO) high temperature water.