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

Conference · Sun Jan 01 00:00:00 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
• Resource Relation: Conference: 22. annual international Metallographic Society meeting, Charlotte, NC, USA, 23 Jul 1989; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

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