Qualification of induction heating stress improvement for mitigation of stress corrosion cracking

Journal Article · Mon Nov 01 04:00:00 EST 1982 · J. Pressure Vessel Technol.; (United States)

DOI:https://doi.org/10.1115/1.3264227· OSTI ID:5970250

Hughes, N R; Diaz, T P; Pestanas, V V

This paper describes the efforts toward qualification of induction heating stress improvement (IHSI) for mitigation of intergranular stress corrosion cracking (IGSCC) in Boiling Water Reactor (BWR) piping. The IHSI process, which is applied to piping after it is fully erected, produces compressive residual stresses on the pipe inside surface in the vicinity of the weld heat affected zone (HAZ). The creation of these compressive stresses has been confirmed by surface and throughwall strain gage and X-ray diffraction residual stress measurements on 4, 10, and 16-in. dia Schedule 80 welded and IHSI treated pipes. Confirmation of increased resistance to IGSCC due to the IHSI process has been accomplished by full-sized 4in-dia pipe tests in General Electric's Pipe Test Laboratory. The pipe test utilized an environment of oxygenated high-purity water at 288/sup 0/C (550/sup 0/F). Axial loads were applied which exceeded the material 288/sup 0/C yield strength.

• Research Organization: General Electric Company, Nuclear Energy Business Group, San Jose, CA 95125
• OSTI ID: 5970250
• Journal Information: J. Pressure Vessel Technol.; (United States), Journal Name: J. Pressure Vessel Technol.; (United States) Vol. 104:4; ISSN JPVTA
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
BWR TYPE REACTORS
CHEMICAL REACTIONS
COHERENT SCATTERING
CORROSION
CRACKING
DECOMPOSITION
DIFFRACTION
FABRICATION
HEAT TREATMENTS
JOINING
LOADING
MATERIALS HANDLING
PIPES
PYROLYSIS
REACTORS
RESIDUAL STRESSES
SCATTERING
STEAM LINES
STRAINS
STRESS CORROSION
STRESSES
THERMOCHEMICAL PROCESSES
WATER COOLED REACTORS
WATER MODERATED REACTORS
WELDING
X-RAY DIFFRACTION