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Ultrasonic Backscattering at JRQ Specimen

: Dobmann, G.

Debarberis, L.:
AMES-NDT-Workshop 1999. CD-ROM
Salzburg: Austrian Research Centers, 2000
ISBN: 3-9500-2558-8
Beitrag 8
AMES-NDT-Workshop <1999, Salzburg>
Fraunhofer IZFP ()
ultrasonic backscattering; pressure vessel steel; material ageing; Hardness enhancement; martensitic phases; fingerprint technique; JRQ reference material

In the round robin action of the AMES network material states of JRQ-steel 'as delivered' and 'aged' by annealing (18 hours at 700°C) followed by water quenching have been studied with different non-destructive techniques, being sensitive for a material characterisation. Ultrasonic backscattering is a possible candidate for microstructure determination and possible potenteials to reveal the aged material. The emphasis of the contribution is to shortly summarise the potentials and to discuss the special result.