Ultrasonic Preparation of Coating Surfaces Ravil I. Nigmetzyanov, Sergey K. Sundukov, Dmitry S. Fatyukhin, Aleksandr V. Sukhov and Dmitry S. Simonov E3S Web Conf., 398 (2023) 01041 Published online: 22 June 2023 DOI: 10.1051/e3sconf/202339801041