NDTnet 1998 Aug, Vol.3 No.8

Abstract

This paper presents the results of a study about the detectability and characterization of welds defects perpendicular to the surface.

The tests have been carried out on a mock-up representative of P.W.R's Reactor Pressure Vessel. The ferritic weld considered is 220 mm thick and coated by a 8mm stainless steel cladding. Several type of planar defects, orientated perpendicularly to the surface are implanted at different depths.

The results acquired permit:

to compare the performance of the different techniques available, namely between radiographic examination and UT tandem examination.

to establish a comparison between the RCC-M (RT + conventional manual UT) and KTA (UT tandem technique + conventional manual UT) approaches,

to juge the feasability and evaluate the problems induced by a UT manual examination through a stainless steel cladding.

Finally, recommendations are given on the techniques and on the sequences of examination to be applied.

Abstract Source:
Book of Abstracts, 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN: 87-986898-0-00

Full-Text Source:
Proceedings of the 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN:

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