Vol. 57, No. 8, 2021

Russian Journal of Nondestructive Testing

Investigating the Possibilities of Assessing the State of the Metal Structure of Pipelines in Service by Ultrasonic Method

V. N. Danilov, V. M. Ushakov and A. I. Rymkevich p. 635 abstract

Specific Features of Nondestructive Testing of Polymer and Composite Materials Using Air-Coupled Ultrasonic Excitation and Laser Vibrometry

V. Yu. Shpil’noi, V. P. Vavilov, D. A. Derusova, N. V. Druzhinin and A. Yu. Yamanovskaya p. 647 abstract

On the Question of Interpreting the Echograms of Ultrasonic Pulse Flaw Detector

A. V. Martynenko and V. P. Ermachenko p. 656 abstract

Measurement of Residual Stress Using the Ultrasonic Method in Aluminum Welding: FE Analysis and Experimental Study

Ali Ebrahimi, Masuod Bayat and Emad Norouzi p. 669 abstract

An Investigation of the Void Structure of Lightweight Concrete Containing Waste Undersize Pumice Additive Using Nondestructive Methods

C. Erenson and M. Kalkan p. 679 abstract

Study of Residual Welding Stresses for Underwater Wet Welding of Low-Alloy Steel Using Magnetic Anisotropic and X-ray Diffractometry Methods

V. E. Nikulin, S. G. Parshin and A. M. Levchenko p. 692 abstract

Differential Background of Electric Signal Read from an Induction Magnetic Head

V. V. Pavlyuchenko and E. S. Doroshevich p. 706 abstract

Comparing and Interpreting Results of Processing In-Line Inspection Data for Corrosive Gas Transportation Conditions

R. K. Vagapov p. 717 abstract

Analyzing the Influence of Thermal NDT Parameters on Test Performance

António Ramos Silva, Mário Vaz, Sofia Ribeirinho Leite and Joaquim Mendes p. 727 abstract