Abstract
It is well known that reduced sulfur species lead to intergranular attack (IGA) of sensitized Alloy 600 at low temperature, however the effect of these species on Alloy 600 at high temperature is not clear. Static autoclave tests were performed to investigate the effect of reduced sulfur (CaS2O3) on the high temperature aqueous corrosion of Alloy 600. The results show that reduced sulfur can cause severe corrosion on Alloy 600 in high temperature water.
