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Studies on the effect of defect characteristics and selected inspection parameters on the detection and sizing of defects in ferritic steel blocks have been performed by UKAEA, CISE, VINCOTTE and CEC, JRC (Ispra) as part of support to PISC ( Programme for the Inspection of Steel Components). The purpose was to acquire reliable experimental data that could be used both to explain results of the PISC I and II Round Robin Tests and to test and validate theoretical models of the ultrasonic testing techniques. For these studies, eighteen test blocks were manufactured. With great care a range of defect types was inserted, covering aspects such as defect shape, defect size, defect surface roughness, defect position in depth, defect orientation. Several of these blocks/defects were selected by the participating institutions. Each of these participants applied the usual well specified ultrasonic techniques : echo techniques, tandem technique, focussing probe technique at 45 and time of flight diffraction. Results of such measurements suggest a clear correlation between defect characteristics and amplitude of response of these defects.

Additional information

Authors: CRUTZEN S, JRC Ispra (IT);CERTO M, CISE, Milano (IT);DOMBRET P, VinÇotte, Bruxelles (BE);MURGATROYD R A, UKAEA, Risley Power Development, Risley, Warrington (GB)
Bibliographic Reference: EUR 12435 EN (1989) 26 pp., FS, ECU 5
Availability: (2)
Record Number: 199010283 / Last updated on: 1994-12-01
Original language: en
Available languages: en
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