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NDT methods for revealing anomalies and defects in gas turbine blades

Author: J. Pitkänen
VTT Manufacturing Technology
Co-authors : T. Hakkarainen, H. Jeskanen, P. Kuusinen,K. Lahdenperä & P. Särkiniemi
VTT Manufacturing Technology
M. Kemppainen
Technical University of Helsinki
M. Pihkakoski
Helsinki Energy








  1. Aladin ,1996 Aladin Wärmewellenmikroskop, Charakterisierung von Materialeigenschaften und Mikrostrukturen mittels Wärmewellen, Datenblatt 010296, IzfP-FHG, Saarbrücken 4p.
  2. Antonelli, G., Ruzzier, M. & Cernushi, F., 1998a A Calibration Free Electromagnetic Technique for NDT of Metallic Coatings, 7th European Conference on non-destructive testing, Copenhagen, 26. - 29, 7p.
  3. Antonelli, G., Ruzzier, M. & Necci, F., 1998b Thickness Measurement of MCrALY High-Temperature Coatings by Frequency Scanning Eddy Current Technique, Journal of Engineering for Gas Turbines and Power, Transactions of ASME 120 (1998) July, p. 537 - 542.
  4. BEMI, 1997 BEMI Barkhausenrausch- und Wirbelstrommikroskop, Neue Möglichkeiten in der Werkstoffprüfung, Datenblatt 010497, IzfP-FHG, Saarbrücken 4p.
  5. Carl., V., Becker, E. & Sperling, A., 1998a Thermography inspection system for gas turbine blades, 7th European Conference on non-destructive testing, Copenhagen, 26. - 29. May p. 2658 - 2665.
  6. Carl., V., Becker, E. & Sperling, A., 1998b Quantitative Wallthickness Measurement with Impuls-Video-Thermography. 7th European Conference on non-destructive testing, Copenhagen, 26. - 29. May p. 1918 - 1924.
  7. Coste, J.-F., Lakestani, F. & Vortrefflich, W., 1996 Thickness Determination of Gas Turbine Metallic Coatings Using Rayleigh Waves The Materials Challenge, News Bulletin of the institute for Advanced Materials, number 9, February 1996, p. 23 - 25.
  8. Czech, N., Kirchner, F. and Stamm, W., 1996 Life assesment of service stressed high temperature coatings by permeability measurements Elevated temperature coatings: Science and Technology II, The minerals & Materials society, ed. Dahotre, N. B. and Hampikian, J. M., s. 361 - 371.
  9. Impuls-Video-Thermographie, 1996 Impuls-Video-Thermographie, Charakterisierung von Materialeigenschaften und Mikrostrukturen, Datenblatt 010496, IzfP-FHG, Saarbrücken, 2p.
  10. Kauppinen, P., 1997 The evaluation of integrity and elasticity of thermallys prayed ceramic coatings by ultrasonics,Dissertation, Helsinki University of Technology (Espoo, Finland), 14th of November, 1997, 130p.
  11. Lakestani, F., Coste, J.-F. & Denis, R., 1995 Application of ultrasonic Thickness Measurement of Metallic coatings, NDT International 28(1995)3, p. 171 - 178.
  12. Ludwig. K., Daalmans, G. M., Bär, L. , Lohmann H. P. and Becker, E., 1998 Crack depth determination in gas turbine blades by eddy current technique. 7th European conference on non-destructive testing, Copenhagen, 26. - 29. May 1998, p. 1888 - 1898.

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