Contents

Russian Journal of Nondestructive Testing

Vol. 57, No. 6, 2021

Acoustic Methods

Applying Plane Wave Imaging Technology in Ultrasonic Nondestructive Testing

E. G. Bazulin and I. V. Evseev p. 423  abstract

Determining the Coordinates of Reflectors in a Plane Perpendicular to Welded Joint Using Echo Signals Measured by Transducers in the TOFD Scheme

E. G. Bazulin, A. Kh. Vopilkin and D. S. Tikhonov p. 437  abstract

Studying Detectability of Plane Surface Defects by Ultrasonic Method Using Rayleigh Waves

N. P. Aleshin, N. V. Krysko, S. V. Skrynnikov and A. G. Kusyy p. 446  abstract

Evaluation of Heat Treatment Effect on the Tensile Strength of Mild Steel Welded Joints Using Ultrasonic Testing

Abid Shah, Ghazanfar Ali, Tariq Mairaj Rasool Khan, Aqueel Shah, Muhammad Imran and Salman Nisar p. 455  abstract

Thermal Methods

Development of Vibrothermography as a Method for Nondestructive Testing of Products Made of Polymer Structural Materials with the Use of Forced Mechanical Vibrations

S. V. Dubinskii, E. A. Kaz’min, I. E. Kovalev, A. B. Kornilov, G. A. Kornilov, V. M. Kostenko and A. A. Chernyavskii p. 465  abstract

Deep and Handcrafted Feature Fusion for Automatic Defect Detection in Quadratic Frequency Modulated Thermal Wave Imaging

G. T. Vesala, V. S. Ghali, A. Vijaya Lakshmi and R. B. Naik p. 476  abstract

A Time Frequency-Based Approach for Defect Detection in Composites Using Nonstationary Thermal Wave Imaging

G. V. P. Chandra Sekhar Yadav, V. S. Ghali and N. R. Baloji p. 486  abstract

Radio Wave Methods

Evaluation of Permittivity and Thickness Gaging for Anisotropic Dielectric Coatings by the Method of Surface Electromagnetic Waves

A. I. Kaz’min, P. A. Fedyunin and D. P. Fedyunin p. 500  abstract