FIELD: technological processes.
SUBSTANCE: invention relates to plasma chemical-thermal treatment of surface of parts and can be used in aircraft engine construction. Method of nitriding items made of titanium alloy in glow discharge comprises vacuum heating of items made from titanium alloy in glow discharge in high density nitrogen plasma. High density nitrogen plasma is formed in circular area of rotation of electrons caught by magnetic field, and nitration of said items is performed in a mixture of gases N2 50÷60 % + Ar 50÷40 % at pressure of 40 Pa and heating of items to temperature of 700÷730 °C with holding for 2–3 hours. Then method comprises performing reducing annealing at 800÷830 °C in argon with holding for 30 minutes, after which item is cooled in vacuum.
EFFECT: intensified process of nitriding, formation of developed nitride diffusion layer, high cyclic fatigue.
1 cl, 1 ex
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