10.14489/td.2025.01.pp.049-055

2025, 01 January

DOI: 10.14489/td.2025.01.pp.049-055

Podymova N. B., Sokolovskaya Yu. G.
NONDESTRUCTIVE ULTRASONIC TESTING OF POROSITY IN ALUMINUM COATINGS USING A LASER OPTOACOUSTIC METHOD
pp. (49-55)

Abstract. A method of nondestructive ultrasonic testing of the volumetric porosity of coatings obtained by arc surfacing of an aluminum alloy onto a steel substrate has been proposed. The method utilizes the laser thermo-optical excitation of probe ultrasonic pulses and the measurement of the spectral power of pulses scattered by pores in a coating, and makes it possible to perform testing with one-sided access to the flat surface of a coating.

Keywords: surfaced coatings, porosity, laser optoacoustic effect, scattering of ultra-sonic waves.

+ - About the Authors Click to collapse

N. B. Podymova (Faculty of Physics, Moscow State University, Moscow, Russia, Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
Yu. G. Sokolovskaya (Faculty of Physics, Moscow State University, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

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