FIELD: power machine engineering. SUBSTANCE: method comprises steps of providing erosion-resistant layer on a surface of inlet edges for increasing service time period of steam turbine blades by fusion-on with use of plasma and inverse polarity current; using as the strengthening erosion-resistant material a powder, for example, of stellite with particle size 100-200 micrometers; feeding such powder into a plasma arc; performing the fusion - on process without melting a base metal; moving a plasmatron in a cross direction with speed 20-22 m/hour. EFFECT: enhanced quality of blade edges, had been strengthened by such method. 1 cl
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