Surface effect of the waves of plastic deformation and hydrogen distribution in metals

The process of wave propagation in elastic-plastic media is accompanied by an oscillatory exchange between the potential and kinetic energy. The wave process decays rapidly if there is a large dissipation of energy in a continuous medium. In this connection, the paradox of the formation and propagation of plastic deformation waves under uniform deformation has not yet been unambiguously described. Several periods of the plastic deformation wave were observed in tested samples. The distribution of hydrogen is fully correlated with plastic deformation, namely, the larger the deformation, the higher the hydrogen content. This effect is explained by structural changes in the metal accompanying the plastic deformation. A mechanism for appearance of a surface plastic wave is proposed.