Abstract
The choice of parameters of dedicated piezoelectric probes is considered with allowance for a surface wave arising at probe angles close to the second critical angle. Recommendations are given for the choice of optimal probe angles and probe x-values. Examples are given to show the application of the dedicated probes, the choice of their type, and the parameters (frequency, probe angle, x-value) for the inspection of butt-welded joints of tubes on the heating surfaces of boilers at thermoelectric power stations.
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RD 34.17.302-97 (OP 501 TsD-97): Steam and Water Boilers. Steam and Hot Water Pipelines. Vessels. Welded Joints, Quality Control. Ultrasonic Control. Basic Regulations, Moscow: NPP Norma, 1997.
Ushakov, V.M., The Use of Angle Piezoelectric Transducers for Flaw Detection in Austenitic Welded Joints, V Mire Nerazrush. Kontrolya, 2003, no. 1 (19), pp. 19–21.
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Original Russian Text © V.M. Ushakov, V.V. Mikhalev, 2007, published in Defektoskopiya, 2007, Vol. 43, No. 3, pp. 87–94.
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Ushakov, V.M., Mikhalev, V.V. Some aspects of using piezoelectric probes for ultrasonic inspection of thin welded joints. Russ J Nondestruct Test 43, 204–209 (2007). https://doi.org/10.1134/S1061830907030102
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DOI: https://doi.org/10.1134/S1061830907030102