Abstract:
It is shown that the laser radiation is much «mixes» coating Cr–Mn–Si–Cu–Fe–Al with the near-surface layers
of the basics, like changing the structure of the coating and its elemental composition at different points of
the sample. From the XPS analysis that the content of coating element deviates from the average content of
the coating prior to laser irradiation, but they occur at specific points in the coagulation of the sample. Occurrence
coagulates can be associated with diffusion processes coating transfer elements (diffusion rate is usually
small in this case), and hydrodynamic processes under the influence of laser shock waves in the liquid
phase of the coating. To coating the Cr–Mn–Si–Cu–Fe–Al+Ti in an argon environment friction coefficient
decreases after laser processing, and micro-hardness increases. The first effect is associated with a decrease in
roughness of the coating when the laser beam reflow. The second effect is due to the formation of the dislocation
structure of the coating with a sharp heating-cooling. When coating Cr–Mn–Si–Cu–Fe–Al+Ti in a nitrogen
environment are formed in the last field containing chromium and titanium nitrides, and XPS data on the
contents of the two components is approximately the same.
