FIELD: metallurgy of high-temperature complex nickel alloys, in particular, methods of heat-treatment of high-temperature discs of gas-turbine engines. SUBSTANCE: heat treatment includes preliminary thermal cycling (at least five cycles) up to ageing temperature with holding at this temperature from 30 min to 1 h and cooling down to room temperature at rate of 150-180 C/s. Then ageing is carried out for 4-6 h with subsequent cooling together with furnace. EFFECT: reduced level of residual stresses at least by 30% with preservation of polycomplex properties. 1 tbl
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