An evaluation of electrochemical potentiokinetic reactivation techniques for in-service measurements on Type 304 stainless steel

Conference · Sun Jan 01 04:00:00 EST 1989

OSTI ID:5617000

Stoner, K J

Electrochemical potentiokinetic reactivation (EPR) tests can be used to measure quantitatively the sensitization of Type 304 stainless steel. The single loop (SL) and double loop (DL) EPR techniques were compared as non-destructive methods for determining sensitization under both laboratory and simulated field environments. Measurements were performed on specimens heat-treated to produce levels of sensitization from no sensitization to heavy sensitization. At temperatures of 22/degree/C and 30/degree/C testing with standard laboratory and portable field apparatus, both EPR techniques were capable of distinguishing sensitization levels at the range spanning those characterized as being non-susceptible and susceptible to intergranular stress corrosion cracking (IGSCC). Through correlations developed for the test data, it is possible to translate field results to the standard laboratory test conditions. This was demonstrated for the SL test through measurements performed on a pipe specimen containing IGSCC. 12 refs., 12 figs., 2 tabs.

• Research Organization: Westinghouse Savannah River Co., Aiken, SC (USA)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 5617000
• Report Number(s): WSRC-RP-89-333; CONF-8907116-4; ON: DE89017859
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
AUSTENITIC STEELS
CARBIDES
CARBON COMPOUNDS
CHEMICAL REACTIONS
CHEMISTRY
CHROMIUM ALLOYS
CHROMIUM CARBIDES
CHROMIUM COMPOUNDS
CHROMIUM-NICKEL STEELS
CORROSION
CORROSION RESISTANT ALLOYS
CRACKS
CRYSTAL STRUCTURE
ELECTROCHEMISTRY
GRAIN BOUNDARIES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
INTERGRANULAR CORROSION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS TESTING
MICROSTRUCTURE
NICKEL ALLOYS
NONDESTRUCTIVE TESTING
PRECIPITATION
SENSITIVITY
SEPARATION PROCESSES
STAINLESS STEEL-304
STAINLESS STEELS
STEEL-CR19NI10
STEELS
STRESS CORROSION
TESTING
TRANSITION ELEMENT COMPOUNDS