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Thermal nondestructive testing of cracks in turbine blades by using ultrasonic stimulation
- Authors: Chulkov A.O.1, Vavilov V.P.1, Zhukov O.M.2
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Affiliations:
- National Research Tomsk Polytechnic University
- UEC-Saturn PJSC
- Issue: No 5 (2024)
- Pages: 61-70
- Section: Thermal methods
- URL: https://archivog.com/0130-3082/article/view/649259
- DOI: https://doi.org/10.31857/S0130308224040052
- ID: 649259
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Abstract
The results of nondestructive testing (NDT) of a turbine blade made of a heat resistant alloy with a ceramic coating were obtained by using ultrasonic infrared (IR) thermography. The purpose of the study was to determine possibilities of this NDT technique in detecting cracks in the blade and the coating. Image processing was performed by using principal component analysis, which allows to underline defect indications in IR images. The obtained test results were in a good accordance with the results obtained by means of penetrants with a considerably shorter inspection time. Potentials of IR ultrasonic thermography in the detection of “kissing: cracks and cracks located in difficult to reach sites was demonstrated.
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About the authors
A. O. Chulkov
National Research Tomsk Polytechnic University
Author for correspondence.
Email: chulkovao@tpu.ru
Russian Federation, 634050 Tomsk, Lenin Av., 30
V. P. Vavilov
National Research Tomsk Polytechnic University
Email: chulkovao@tpu.ru
Russian Federation, 634050 Tomsk, Lenin Av., 30
O. M. Zhukov
UEC-Saturn PJSC
Email: chulkovao@tpu.ru
Russian Federation, 152903 Rybinsk, Lenin Av., 163
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