Technical Diagnostics and Non-Destructive Testing, 2023, №02



2023 №02 (03)

DOI of Article 10.37434/tdnk2023.02.04

2023 №02 (05)

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Technical Diagnostics and Non-Destructive Testing #2, 2023, pp. 28-33

Application of ultrasonic packet pulses of raleigh waves for testing the hardness of surface-hardened metals

S.Yu. Pliesnetsov, G.M. Suchkov, R.P. Mygushchenko, O.Yu. Kropachek, Yu.O. Pliesnetsov, A.V. Donchenko

National Technical University «Kharkiv Polytechnic Institute». 2 Kyrpychova str., 61002, Kharkiv, Ukraine. E-mail: Serhii.Pliesnetsov@khpi.edu.ua

The possibility of nondestructive testing of hardness of surface-hardened metal products by contactless ultrasonic electromagnetoacoustic method with application of waves of different frequency was established. General characterization of the mechanism of operation of the electromagnetoacoustic transducer at excitation and reception of ultrasonic waves is given, taking into account the possible influence of shear and longitudinal waves. The features of the transducer design at excitation of Raleigh waves are considered, which ensure performance of hardness control. A stand was made to conduct the experimental verification of the results of theoretical and model investigations. Experimental investigations confirmed the possibility of performance of nondestructive hardness control, using electromagnetoacoustic transducers. 9 Ref., Fig. 4.
Keywords: metal hardness, hardened layer, ultrasonic testing, Raleigh waves, ultrasonic wave frequency, electromagnetoacoustic transducer

Received: 16.01.2023

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