Work on three thermographic NDE techniques that have been developed to locate and image cracks in metallic components is reviewed. These techniques are: thermosonics (sonic IR, ultrasonically stimulated thermography); laser spot thermographic imaging; and pulsed eddy current stimulated thermography. The three techniques are explained and examples are given of their performance in imaging well-characterised cracks. Factors concerning the practical and reliable implementation of the techniques are discussed.
|Number of pages||7|
|Journal||Insight: Non-Destructive Testing and Condition Monitoring|
|Publication status||Published - Nov 2011|
Almond, D. P., Weekes, B., Li, T., Pickering, S. G., Kostson, E., Wilson, J., Tian, G. Y., Dixon, S., & Burrows, S. (2011). Thermographic techniques for the detection of cracks in metallic components. Insight: Non-Destructive Testing and Condition Monitoring , 53(11), 614-620. https://doi.org/10.1784/insi.2011.53.11.614