FIELD: metallurgy.
SUBSTANCE: method of surface hardening of metal articles includes application on the article surface of layer of liquid or gel-like electric conducting adhesive material, then layer of material powder containing alloying element, or these components mixture. Then the metal article is loaded in the container filled with coal powder, article heating by current passage using the said container and metal article as electrodes. In particular case of the invention implementation as adhesive material the material that during heating does not evolve products preventing diffusion of the alloying elements in the article surface.
EFFECT: hardening of surface of the metal article due to formation of the high strength alloyed layer.
2 cl, 2 dwg, 4 ex
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