Abstract
The results of the study of the phase and elemental composition, the state of the defective substructure, the mechanical and tribological properties of the powder coating of the Ni-Cr-B-Si system formed on A356Gr1 steel using a combined method, which includes plasma spraying and the subsequent irradiation with an intense pulsed electron beam in the melting mode of the surface layer, are presented. It is shown that the combined treatment is accompanied by formation of a surface layer with a thickness up to 1500 microns, the microhardness and the wear resistance of which manifold exceed the corresponding characteristics of the reference steel.
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