Abstract
In order to study the effect of oxidation conditions on the metal release of Type 304SS in high temperature pure water, the specimens oxidized in various environments such as air, steam or water were immersed in deionized and deaerated water of 180°C, and metal release level was measured by weight loss. The behavior of metal release was also discussed in relation to the surface film which was formed by oxidation treatment. As the results, the oxidation treatments in air at 425°C and in steam at 350°C were found to be specially effective to decrease the metal dissolution compared with those of mechanical polishing and the oxidation in water. The results corresponded well with the structure of surface films.
