Corrosion: Environments and Industries
This article reviews the generator industry experience with stress-corrosion cracking of 18Mn-5Cr alloy retaining rings. It provides a description of corrosion of magnetic retaining rings. Crevice-corrosion cracking occurs specifically at a brazed connection at the end of the stator coil of a water-cooled generator. The article discusses the primary repair alternatives to address corrosion in the water-cooled generator.