FIELD: metallurgy.
SUBSTANCE: after homogenisation and two-stage ageing the proposed material is subject to additional treatment by heating to the temperature of 1100+10°C≤Tto≤(Tid y' - 10°C), where Tid y' - intensive dilution temperature of γ'-phase in the alloy, exposure at this temperature and cooling at the rate of not less than 50 deg/min.
EFFECT: improving mechanical properties of casting products from carbon-free heat-resistant nickel alloys with monocrystalline structure.