FIELD: metallurgy.
SUBSTANCE: invention concerns metallurgy field. Particularly it concerns castable alloys on the basis of intermetallic compound Ni3Al and products, received by means of method precision moulding by dispensable pattern with polycrystalline structure, such as nozzle blades, nozzle block spacers, large-size folds and other details of gas turbine engine of aircraft and automobile industry. Alloy has a following compound, wt %: Al 8.5-9.5, Cr 4.5-5.5, W 1.5-2.5, Mo 2.0-3.0, Co 6.0-8.0, Zr 1.0-1.3, C 0.15-0.20, B 0.001-0.005, Y 0.001-0.005, Ni - the rest.
EFFECT: increasing of plasticity, durability, high-cycle fatigue and thermal stability.
2 cl, 2 tbl, 1 ex
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