Independent qualification of phased array inspection of fillet welds
This paper addresses the qualification of the inspection procedure, which TWI managed on behalf of Magnox Generation following the ENIQ methodology. The comprehensive technical justification document was supported by practical trials of the procedure, equipment and individual data analysts. The qualification was completed successfully and confirmed that the procedure was capable of reliably detecting crack-like defects in the weld or heat affected zone greater than 1.5 mm wide by 10 mm long. It also confirmed that, subject to certain provisos, the defect width would not be underestimated by more than 1.5 mm.
This qualification involved a novel technique with particular challenges and this paper describes the way in which these were overcome.
Document Type: Research Article
Affiliations: 1: Firecrest Consulting, 34 Cambrian Drive, Yate, Bristol BS37 5TS, UK 2: TWI, Granta Park, Cambridge CB1 6AL, UK 3: BNFL Magnox Generation, Berkeley Centre, Berkeley, Gloucestershire GL13 9PB, UK
Publication date: February 1, 2003
- Official Journal of The British Institute of Non-Destructive Testing - includes original research and devlopment papers, technical and scientific reviews and case studies in the fields of NDT and CM.
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