Stabilization of Wave Formation on a Contact Boundary of Metal Layers at an Oblique Impact during Kelvin - Helmholtz Instability Development

摘要

The elimination effect of disturbances and mutual mixing on a contact boundaries of metal layers at oblique impact during Kelvin -Helmholtz instability development was established and investigated. Thin layers of metal coatings (△～30 μm) reduce amplitude of disturbance realization in 10 – 100 times and eliminate mutual mixing of contacting materials (eliminate the formation of a welded point). The foils of the same materials and thicknesses are not characterized by the same strong stabilizing properties. This stabilizing effect is explained by physical properties of a metal coating as a whole. Thermophysical limits for coating layers are pointed out.