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Phased array-based SAFT for defect sizing on power plant components

  • Quantitative NDE methods play a key role when it comes to inspect components, which requires high operational safety. UT-SAFT is one of the well-known reconstruction tools, which provides information about the defect size. In this work we studied the use of phased array technique in combination with the SAFT algorithm to inspect power plant components. As a first example we inspected a real-sized mock-up model representing a part of a reactor pressure vessel with a 180 mm-thick ferritic base material followed by a 6 mm-thick austenitic cladding layer. The phased array probe was coupled at the outer ferritic surface. We detected and sized fatigue cracks within the cladding with a depth ranging from 4 mm to 10 mm. Secondly, we investigated a mock-up model resembling a nozzle including a thermo sleeve inlet and a maximum wall thickness of about 37 mm. Artificially inserted notches with a depth of 3 mm could be detected and sized, where the thermo sleeve is welded at the inside of theQuantitative NDE methods play a key role when it comes to inspect components, which requires high operational safety. UT-SAFT is one of the well-known reconstruction tools, which provides information about the defect size. In this work we studied the use of phased array technique in combination with the SAFT algorithm to inspect power plant components. As a first example we inspected a real-sized mock-up model representing a part of a reactor pressure vessel with a 180 mm-thick ferritic base material followed by a 6 mm-thick austenitic cladding layer. The phased array probe was coupled at the outer ferritic surface. We detected and sized fatigue cracks within the cladding with a depth ranging from 4 mm to 10 mm. Secondly, we investigated a mock-up model resembling a nozzle including a thermo sleeve inlet and a maximum wall thickness of about 37 mm. Artificially inserted notches with a depth of 3 mm could be detected and sized, where the thermo sleeve is welded at the inside of the nozzle.zeige mehrzeige weniger

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Metadaten
Autor*innen:Gerhard Brekow, Daniel Brackrock, Rainer Boehm, Marc Kreutzbruck
Persönliche Herausgeber*innen:D. O. Thompson, D. E. Chimenti
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Review of progress in quantitative nondestructive evaluation, volume 28
Jahr der Erstveröffentlichung:2009
Verlag:American Institute of Physics
Verlagsort:Melville, NY
Ausgabe/Heft:1096
Erste Seite:872
Letzte Seite:879
Freie Schlagwörter:Phased arrays; Power plant components; SAFT; Ultrasonic testing
Veranstaltung:35th Annual Review of Progress in Quantitative Nondestructive Evaluation
Veranstaltungsort:Chicago, IL, USA
Beginndatum der Veranstaltung:2008-07-20
Enddatum der Veranstaltung:2008-07-25
ISSN:0743-0760
ISSN:0094-243X
ISBN:978-0-7354-0629-2
Bemerkung:
Serientitel: AIP conference proceedings – Series title: AIP conference proceedings
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:19.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:28.05.2009
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