PROCEDURE FOR ION-PLASMA NANO-LAYER COATING ON BLADES OF TURBO-MACHINES OUT OF ALLOYED STEEL Russian patent published in 2011 - IPC C23C14/48 C23C14/06 C23C14/02 B82B3/00 

FIELD: machine building.

SUBSTANCE: procedure consists in ion-plasma treatment of surface of blade with successive application of alternate layers on it with thickness from 10 nm to 30 nm; layers consist of metals or compounds of these metals with other metallic or non-metallic elements. Upon application of each layer there is performed implantation treatment with ions of other metallic or non-metallic elements till there is produced a continuous imbedded into surface layer of thickness from 1 to 9 nm. Also, as metals for application of the layer there are used Ti, Zr, Hf, Cr, V, Nb, Ta, Mo, W, Al, La, Eu, while as implanted ions there used ions of Cr, Y, Yb, C, B, Zr, N, La, Ti or their combination under condition of heterogeneity of metals applied as layer and metals implanted into this layer.

EFFECT: raised resistance and cyclic service life.

20 cl, 3 tbl