FIELD: metallurgy.
SUBSTANCE: invention relates to production of hardened alloy with metal base and nanoparticles dispersed therein, at least 80% of which feature mean size of 0.5-50 nm. Said nanoparticles contain at least one nitride selected from nitrides of at least one metal M selected from the group including Ti, Zr, Hf and Ta. Claimed process comprises the steps that follow. a) Plasma hardening of the main alloy is performed at 200-700°C for adding thereto of imbedded nitrogen. Note here that said main alloy contains some 0.1-1 wt% of metal element M and is selected from austenite, ferrite, ferrite-martensite alloy or nickel-based alloy. b) Imbedded nitrogen is diffused in said main alloy at 350-650°C. c) Nitride is isolated at 600-900°C for 10 minutes to 10 hours with formation of said nanoparticles dispersed in hardened alloy.
EFFECT: alloy hardened by nitride particles.
29 cl, 1 dwg
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