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U.S. Department of Energy
Office of Scientific and Technical Information

Characterization of flaws in a tube bundle mock-up for reliability studies

Conference ·
OSTI ID:555618
As part of an assessment of in-service inspection of steam generator tubes, the authors will assemble a steam generator mock-up for round robin studies and use as a test bed in evaluating emerging technologies. Progress is reported on the characterization of flaws that will be part of the mock-up. Eddy current and ultrasonic techniques are being evaluated as a means to characterize the flaws in the mock-up tubes before final assembly. Twenty Inconel 600 tubes with laboratory-grown cracks, typical of those to be used in the mock-up, were provided by Pacific Northwest National Laboratory for laboratory testing. After the tubes were inspected with eddy current and ultrasonic techniques, they were destructively analyzed to establish the actual depths, lengths, and profiles of the cracks. The analysis of the results will allow the best techniques to be used for characterizing the flaws in the mock-up tubes.
Research Organization:
Argonne National Lab., IL (United States)
Sponsoring Organization:
Nuclear Regulatory Commission, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
555618
Report Number(s):
ANL/ET/CP--91432; CONF-9610202--7; ON: DE97053536
Country of Publication:
United States
Language:
English