Magnetohydrodynamic perturbations arising in metallic conductors under the action of the discharge current

The presence of radial and axial mechanical perturbations in metallic conductors (cylinders and flat plates) arising under the action of a nanosecond discharge current are proved experimentally. The amplitude of the mechanical perturbations in solid-state conductors oscillates. The radial component of the mechanical perturbation should be considered as a reason for a magnetohydrodynamic instability with mode $m$ = 0 and, accordingly, for the formation of strata at the electrical explosion of the conductor. Data for the electrical explosion of the metallic cylindrical conductor and flat metal sheet (foil) are presented.