Non-destructive examination and component reliability: what should we be looking for

Conference · Mon Jan 01 00:00:00 EST 1979

OSTI ID:7054035

Bush, S. H.

Causes of crack initiation and propagation leading to leaking or to component failure have been examined for various pressure boundary components in nuclear systems. These failures have been reviewed as to their safety significance. Such failures were predominantly due to intergranular stress corrosion, thermal fatigue and erosion fatigue in the component population examined. Based on the success or lack of success in detecting cracks due to these predominant mechanisms suggestions are made concerning use of more information in the UT frequency spectrum. Alternately, the amplitude approach should be optimized to improve the probability of detection of flaws such as IGSCC.

• Research Organization: Battelle Pacific Northwest Labs., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 7054035
• Report Number(s): PNL-SA-8090; CONF-800231-3; TRN: 81-002970
• Resource Relation: Conference: 3. international conference on nondestructive evaluation in the nuclear industry, Salt Lake City, UT, USA, 11 Feb 1980
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
PIPES
CRACK PROPAGATION
RELIABILITY
REACTOR COMPONENTS
FAILURES
BWR TYPE REACTORS
DEFECTS
EROSION
FATIGUE
LEAKS
NONDESTRUCTIVE TESTING
PWR TYPE REACTORS
STRESS CORROSION
THERMAL FATIGUE
CHEMICAL REACTIONS
CORROSION
MATERIALS TESTING
MECHANICAL PROPERTIES
REACTORS
TESTING
WATER COOLED REACTORS
WATER MODERATED REACTORS
220200* - Nuclear Reactor Technology- Components & Accessories