Published December 1986 | Version v1
Report Metadata-only

Chemical enhancement of crevice flushing program

Creators

  • 1. Westinghouse Electric Corp.

Description

This work concerned the use of chemical enhancement of tube sheet crevice flushing (TSCF) to modify the tube sheet crevice environment in order to retard or stop intergranular attack/intergranular stress corrosion cracking (IGA/IGSCC). The background on TSCF is given. The program objectives were to determine: (1) the suitability of TSCF as a means for accumulating a corrosion inhibitor (i.e., boric acid) in a deep tube sheet crevice and (2) if adding one or more of the following chemicals to the bulk water during TSCF operations can increase its effectiveness: surfactants, dispersants, boric acid, flotation agents, and cleaning agents. The test program description is discussed. The testing was performed in a model boiler with a full depth crevice and tube sheet simulator. Results of the tests are presented

Additional details

Publishing Information

Imprint Title
Proceedings: 1985 EPRI (Electric Power Research Institute) workshop on remedial actions for secondary-side intergranular corrosion
Journal Page Range
p. C1.1-C1.39.
Report number
EPRI-NP--4929

Conference

Title
Workshop on remedial action for secondary-side intergranular corrosion.
Dates
15-16 Oct 1985.
Place
Baltimore, MD (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
18095513
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
ADDITIVES; CLEANING; INTERGRANULAR CORROSION; PWR TYPE REACTORS; SECONDARY COOLANT CIRCUITS; SODIUM; STEAM GENERATORS; WATER CHEMISTRY
Descriptors DEC
ALKALI METALS; BOILERS; CHEMICAL REACTIONS; COOLING SYSTEMS; CORROSION; ELEMENTS; ENRICHED URANIUM REACTORS; METALS; POWER REACTORS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; THERMAL REACTORS; VAPOR GENERATORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; WATER TREATMENT