·Table of Contents
·Materials Characterization and testing

Surface Crack Detection Using Rayleigh Waves - in immersion: A Novel Application of a Known Principle

Dr. Sebastian Gripp

Inspection of forged compressor and turbine disks

Contoured forging

Automated UT inspection system

Control software

Considerations on surface crack detection

Surface crack inspection with Rayleigh waves

Through transmission of the surface

Impulse echo inspection with surface waves


Further development


  1. Sebastian Gripp, Knut Escher: Automatisierte Prüfung von Kompressor- und Turbinenscheiben mit Endkontur. Proceedings Jahrestagung der DGZfP 1999.

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