FIELD: metallurgy.
SUBSTANCE: invention relates to a method of hardening blisk blades from alloyed steels. Method involves polishing, ion cleaning and ion-implantation treatment of blades. Ion-implantation treatment of the surface layer is carried out with nitrogen ions at energy of 18 to 32 keV in dose of 1.6⋅1017 up to 2.0⋅1017 ion/cm2. In process of treatment, blisk is simultaneously rotated relative to its centre in plane perpendicular to its longitudinal axis and relative to axis formed by intersection of plane passing through axis of flow of implanted ions and centre of blisk with rotation speed providing processing of entire working surface of blisk blades. A stream of implanted ions is directed to the treated blisk only on one side of the blisk being treated.
EFFECT: invention can be used in aircraft engine building and power turbine building.
3 cl, 1 ex
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