Ultrasonic Inspection of Thin Duplex Steel Weld Joints by TOFD

Erika Hodúlová; Ingrid Kovaříková; Beáta Šimeková; Koloman Ulrich

doi:10.4028/www.scientific.net/AMM.752-753.584

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 752-753Ultrasonic Inspection of Thin Duplex Steel Weld...

Ultrasonic Inspection of Thin Duplex Steel Weld Joints by TOFD

Abstract:

The use of non-destructive inspection techniques in conventional stainless steels is well established. However the non-destructive inspection of duplex and superduplex steels is a big challenge as those steels, being composed of ferrite and austenite, have some particularities. When using ultrasound, for instance, its waves propagate well in ferrite, but suffer strong attenuation, scattering and refraction in austenite. An extended research is proposed on the inspection of duplex steels, especially in welded joints, which presents the worst problems in those steels (incorrect ferrite/austenite balance and precipitation of deleterious phases). The aim of this work was to use the TOFD ultrasonic inspection method for the thin duplex steel weld joint inspection.

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Periodical:

Applied Mechanics and Materials (Volumes 752-753)

Pages:

584-587

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.752-753.584

Citation:

Cite this paper

Online since:

April 2015

Authors:

Erika Hodúlová, Ingrid Kovaříková, Beáta Šimeková*, Koloman Ulrich

Keywords:

Austenite, Duplex Steel, Non-Destructive Inspection, Ultrasound Inspection

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* - Corresponding Author

References

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