Reliability of Ultrasonic In-Service Inspection of Welds in Reactor Internals of Boiling Water Reactors - Softcover

Commission, U.S. Nuclear Regulatory

 
9781499636888: Reliability of Ultrasonic In-Service Inspection of Welds in Reactor Internals of Boiling Water Reactors
Softcover
ISBN 10: 1499636881 ISBN 13: 9781499636888
Verlag: CreateSpace Independent Publishing Platform, 2014

Inhaltsangabe

Instances of stress corrosion cracking in reactor pressure vessel internal components have been found, especially in the boiling water reactor (BWR) core shroud. Results from in-service inspection are an important aspect of integrity evaluations. One of the major goals of the work described in this report is to quantify the crack detection reliability and sizing error of ultrasonic inspection methods for reactor internals. A mockup is described, along with its application to the assessment on nondestructive evaluation reliability for in-service inspection of reactor internals. The mockup of a BWR core shroud includes cracks in some of the 40 welded assemblies selected to represent field conditions. The selected material and geometry include most conditions and alloys used in the core shroud and its support structure. This report provides an overview of the work being performed and focuses on the parametric study results relating ultrasonic response and its variance to inspection effectiveness. Results of a blind test of an in-service inspection vendor’s phased array technique are also provided in this report.

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Verlag
CreateSpace Independent Publishing Platform
Erscheinungsdatum
2014
Sprache
Englisch
ISBN 10 
1499636881
ISBN 13 
9781499636888
Einband
Taschenbuch
Anzahl der Seiten
112
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