FIELD: machine building.
SUBSTANCE: procedure consists in application of coating on surface of steel item by diffusion saturation with nickel and copper, further, there is performed hardening thermal treatment of item by tempering from temperature of diffusion saturation and tempering. Coating is subjected to surface plastic deformation with rolling or shot-blasting at value of contact stresses in zone of deformation 3500…8000 MPa.
EFFECT: high operability of steel items and tool under hard usage with effects of high contact stresses, wear and influence of aggressive working mediums.
2 ex
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