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This paper presents the results of experimental studies of the influence of a high-frequency electromagnetic field on the physical, mechanical, and tribological properties of polymer friction composites for automotive brakes. It was shown that, in some cases, the treatment with an electromagnetic field results in the transformation of the polymer supramolecular structure. In the case of treatment of initial powder compositions, significant changes (up to 20%) in the dynamic modulus of elasticity and the tribological properties of the final materials were found. The possible mechanisms of the effect of pulsed high-frequency electromagnetic treatment on the physical and mechanical properties of friction materials, as well as the correlation of the properties with the acoustic noise of friction units, are under discussion.

The results of studying the effect of high-frequency magnetic-pulse treatment of electrodeposited chromium coatings on their structure are described. It is shown that the effect of magnetic-pulse treatment depends on the deposition conditions, which are responsible for significant changes in the initial structure and microhardness of the coatings.

The effect of the complex acoustic-radio wave treatment of water on the index of activity of the hydrogen ions, the rheological characteristics of the cement-sand mixtures tempered by this water, and the technological parameters of the obtained plasticized fine-grained concretes was studied. Two methods were used to reach the maximum effect on the index of the activity of the hydrogen ions of the water, the mobility, the storability of the prepared concrete mixes, and the density and compressive strength of the concretes. The first method was a four-minute complex acoustic-radio wave treatment of the water (high frequency (5.28MHz) + ultra sound (44 kHz)) that was followed by the four-minute additional impact of a high-frequency field. The second method used was a four-minute complex treatment of used water (high frequency (5.28 MHz) + ultra sound (1 MHz)) followed by the two-minute extra impact of a high frequency field. The assumptions concerning the mechanism of the acoustic-radio waves activation of the water and the effect of this water on the process of hardening used and the structure of the Portland cement systems are expressed.

The variation in the structure and properties of cast-iron sealing rings (content in wt %: 2.8–3.0 Si; 0.4–0.6 Mn; 0.1–0.2 Cr; 0.5–0.6 Ni; 0.7–0.9 Cu; 0.04–0.06 Mg; 2.8–3.0 C) under their exposure to a 5.28-MHz pulsed magnetic field is studied. Variations in the eutectoid morphology, the internal structure of the graphite inclusions, and the size of the free cementite inclusions, which result in the enhancement of the hardness, are observed. The magnetic-pulse treatment of rings induces compression stresses in them. The physicomechanical properties of the rings change periodically upon the variation of the number of treatment cycles. The optimum mode corresponds to two cycles.

The effect of a low-intensity radio wave (5.28 MHz) electromagnetic field on the seeds of annual and perennial legumes has been investigated. It has been shown that the presowing electromagnetic treatment of the seeds with a duration of 10–15 min contributes to their laboratory and arable germination enhancement, survival, and crop capacity increase and can be considered as a mediator of the seeds’ cell receptors that initiate intracellular mechanisms that lead to the improvement of the seeds’ sowing quality.