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U.S. Department of Energy
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Causes of denting. Volume 5. Contaminant threshold tests. Final report

Technical Report ·
OSTI ID:5350109

Steam generators in PWR plants have been subject to denting corrosion as a result of nonprotective magnetite forming on the carbon steel support plate causing the voluminous corrosion product that eventually crimps (dents) the heat transfer tube at the support plate interface. This project was designed to determine the causes of denting and the usefulness of water chemistry changes meant to arrest denting. This volume of the final report describes laboratory research on the correlation of water chemistry, superheat, and oxygen ingress with denting in steam generators.

Research Organization:
Westinghouse Electric Corp., Pittsburgh, PA (USA)
OSTI ID:
5350109
Report Number(s):
EPRI-NP-3275-Vol.5; ON: DE84920277
Country of Publication:
United States
Language:
English