Abstract
1. Berezhnyts'ka MP, Kyrylenko SM, Paustovskii AV. Evaluation of residual stresses in bars subjected to surface hardening. Material Science. 1997;33(6): 851-861. https://doi.org/10.1007/BF0235.... CrossRef Google Scholar
Highlights
Various methods are widely used to change the physical and mechanical properties of metals in order to improve their performance
We experimentally study the effect of shot peening on the change in the properties of the near-surface layers of the metal, as well as the velocity of surface acoustic waves (SAW) of various frequencies
SAW was excited and receivering using wedges, in which a longitudinal bulk acoustic wave is transformed into a surface wave and vice versa
Summary
Various methods are widely used to change the physical and mechanical properties of metals in order to improve their performance. One of them is shot peening of metal, which consists in treating the surface with a jet of abrasive particles. This technology is used to clean the metal surface and improve its fatigue strength and other performance characteristics. As a result of the impact of abrasive particles, plastically deformed microsections appear on the surface, and a plastically deformed layer is formed in the nearsurface regions of the metal. Another result of shot peening is a change in surface roughness and a deformed surface layer, as a result of which compressive stresses arise in it. There are a number of works that consider the processes occurring in metal as a result of shot peening [3, 12, 15], its effect on fatigue strength [22], as well as the effect on increasing the adhesion strength with the base of single-layer coating [4, 5, 8, 9, 20]
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