Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Correlation of tube support corrosion studies. Final report

Technical Report ·
OSTI ID:7243393
; ; ;
Corrosion of tube support plate (TSP) materials in the tube/TSP crevice region of PWR steam generators has resulted in deformation of the Alloy 600 tubes (denting) and decreased plant availability as a result of steam generator leakage. The purposes of this program were to review laboratory data on denting from SGOG-1 programs, to summarize program results, and to employ the laboratory results to predict the time to initiate denting in commercial steam generators as a function of blowdown chemistry. Analyses of corrosion data from isothermal capsules, heated crevice devices, pot boilers, single tube model boilers and model steam generators were performed. Chemistry/corrosion correlations were developed from the capsule data. Impurity concentrations in the crevices were correlated to those in the bulk water for the tests with the heat transfer devices. Based on these correlations, a prediction of time to dent initiation in PWR steam generators as a function of bulk water chemistry was developed and was shown to be in reasonable agreement with experience at commercial units.
Research Organization:
NWT Corp., San Jose, CA (USA)
OSTI ID:
7243393
Report Number(s):
EPRI-NP-4818; ON: TI87920089
Country of Publication:
United States
Language:
English

Similar Records

Correlation of tube support structure studies. Final report
Technical Report · Tue Jul 01 00:00:00 EDT 1986 · OSTI ID:5539376
An Investigation of the Mechanism of IGA/SCC of Alloy 600 in Corrosion Accelerating Heated Crevice Environments - Topical Report Phase I 8/18/1999 - 8/31/2000
Technical Report · Tue Oct 31 23:00:00 EST 2000 · OSTI ID:769257
Steam-generator chemical-cleaning Demonstration Test No. 3 in a pot boiler. [PWR]
Technical Report · Thu Mar 31 23:00:00 EST 1983 · OSTI ID:6278182

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
BOILERS
CHALCOGENIDES
CHEMISTRY
CORROSION DENTING
DEFORMATION
ENERGY TRANSFER
FLUID MECHANICS
HEAT TRANSFER
HYDRAULICS
HYDROGEN COMPOUNDS
IRON COMPOUNDS
IRON ORES
IRON OXIDES
MAGNETITE
MECHANICS
MINERALS
ORES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PWR TYPE REACTORS
REACTORS
SEAWATER
STEAM GENERATORS
TESTING
TRANSITION ELEMENT COMPOUNDS
TUBES
VAPOR GENERATORS
WATER
WATER CHEMISTRY
WATER COOLED REACTORS
WATER MODERATED REACTORS