Corrosion Behavior of SUS 304 Stainless Steel in High Temperature and High Pressure Water Adding Metal Ions

Abstract

The effect of metal ion additions on the corrosion behavior of SUS 304 stainless steel in simulated boiling water reactor (BWR) environment was investigated. This exposure test was carried out using a high temperature and high pressure (HT/HP) experimental loop. Each metal ion addition did not affect appreciably the corrosion weight loss (or corrosion rate). The corrosion film in any systems had a double layer structure consisting of a Cr-rich inner layer and an Fe-rich outer layer. The formation mode and thickness of the film were changed by the additions of metal ions.