Dobmann, G.G.Dobmann2022-03-092022-03-092000https://publica.fraunhofer.de/handle/publica/334856In 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.enultrasonic backscatteringpressure vessel steelmaterial ageingHardness enhancementmartensitic phasesfingerprint techniqueJRQ reference material620658670conference paper