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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.

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William G. Moore, Corrosion of Generators, Corrosion: Environments and Industries, Vol 13C, ASM Handbook, Edited By Stephen D. Cramer, Bernard S. Covino, Jr., ASM International, 2006, p 497–498,

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