FIELD: power engineering, in particular, heat treatment of welded joints of high-strength nickel-base alloys operating under conditions of vibration, high temperatures and aggressive media. SUBSTANCE: method includes preliminary local heating of welded joints in vacuum by exposure of welded joints to effect of high-temperature pulse plasma with jet energy density of 1•105-1•106 W/sq.cm for 1•10-5-1•10-6 s ensuring melting of cast weld and its crystallization to form structure homogeneous with base metal and subsequent heat treatment carried out by heating welded joint to temperature of (1050-1100) ± 10 C and holding at this temperature for 15-20 min and cooling in the air. EFFECT: higher efficiency.
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