Performance demonstration of an ultrasonic nozzle inspection system: Part II -- Full flaw characterization
- Knolls Atomic Power Lab., Schenectady, NY (United States)
- Southwest Research Inst., San Antonio, TX (United States)
Automated ultrasonic system qualification requirements were defined for a vessel nozzle inner radius inspection. These included a 95-percent confidence that the target flaw is detected at least 90-percent of the time, and conservative, single-sided, 95-percent confidence level tolerances for flaw distance below the surface (ligament), through-wall projection (depth), and length estimates. Multibeam transducer configurations were developed in response to these requirements. Qualification focused on volumetric flaws in cladding since extensive work was previously performed on fatigue cracks in base metal. Results of automated application of flaw location, identification, and sizing procedures to twenty-nine flaws are compared to manual results and destructive evaluation results. Transducer development and flaw detection results are reported separately.
- OSTI ID:
- 72614
- Report Number(s):
- CONF-931061-; ISBN 0-87170-506-0; TRN: 95:015680
- Resource Relation:
- Conference: 12. international conference on non-destructive evaluation in the nuclear and pressure vessel industries, Philadelphia, PA (United States), 10-13 Oct 1993; Other Information: PBD: 1994; Related Information: Is Part Of 12th International Conference on NDE in the Nuclear and Pressure Vessel Industries; PB: 521 p.
- Country of Publication:
- United States
- Language:
- English
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