Progress in acoustical defect sizing NDT methods for the inspection of power-plant components
- The demand of improved NDT methods with proper visualization and sizing
capabilities is a persistent trend in maintenance and manufacturing quality inspection.
Especially when dealing with high quality standards in conjunction with safety-critical
components in the sector of energy and transportation quantitative NDT techniques are
vital to provide reliable quality control systems and a corresponding deeper insight into
the component structure for a further fracture-mechanical estimation. The paper thus
focuses the progress of the defect sizing capabilities of modern Ultrasonic Testing
(UT). In Ultrasonic Testing the SAFT-algorithm (Synthetic Aperture Focusing
Technique) currently experiences a renaissance. The method is based on combining the
data of different transducer positions with their corresponding varied propagating time
and it is currently applied in several industrial applications. SAFT enhances the SNR
and the spatial resolution and is thus a valuable tool when it comes toThe demand of improved NDT methods with proper visualization and sizing
capabilities is a persistent trend in maintenance and manufacturing quality inspection.
Especially when dealing with high quality standards in conjunction with safety-critical
components in the sector of energy and transportation quantitative NDT techniques are
vital to provide reliable quality control systems and a corresponding deeper insight into
the component structure for a further fracture-mechanical estimation. The paper thus
focuses the progress of the defect sizing capabilities of modern Ultrasonic Testing
(UT). In Ultrasonic Testing the SAFT-algorithm (Synthetic Aperture Focusing
Technique) currently experiences a renaissance. The method is based on combining the
data of different transducer positions with their corresponding varied propagating time
and it is currently applied in several industrial applications. SAFT enhances the SNR
and the spatial resolution and is thus a valuable tool when it comes to improved
defect detection and sizing. A tomographic-like data mapping is illustrated on several
examples, where adapted phased array systems were used for the inspection of turbine
components and also for a cladded mock-up of a nuclear reactor pressure vessel. In a
statistical investigation we also performed a comparison with other defect sizing
methods like TOFD (Time of flight diffraction).…
Autor*innen: | Marc Kreutzbruck, Jens PragerORCiD, Rainer Boehm, Jessica Kitze, Gerhard Brekow |
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Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | 18th WCNDT - World conference on nondestructive testing (Proceedings) |
Jahr der Erstveröffentlichung: | 2012 |
Erste Seite: | 1 |
Letzte Seite: | 8 (Paper 497) |
Freie Schlagwörter: | Cracks; Phased Array; SAFT; TOFD |
Veranstaltung: | 18th WCNDT - World conference on nondestructive testing |
Veranstaltungsort: | Durban, South Africa |
Beginndatum der Veranstaltung: | 2012-04-16 |
Enddatum der Veranstaltung: | 2012-04-20 |
ISBN: | 978-0-620-52872-6 |
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: | Nein |