NICKEL-BASED HEAT-RESISTANT FOUNDRY ALLOY AND ARTICLE MADE THEREFROM Russian patent published in 2021 - IPC C22C19/05 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, particularly, to nickel-based heat-resistant foundry alloys, and can be used for casting of parts of hot-path of gas-turbine engines. Nickel-based heat-resistant foundry alloy contains, wt. %: carbon up to 0.20; chromium 5.0–11.0; cobalt 5.0–11.0; titanium 1.5–3.0; tungsten 8.0–13.0; niobium 0.5–1.25; aluminum 4.0–6.0; boron up to 0.05; zirconium up to 0.05; hafnium 1.0–2.0; at least one element from the group: yttrium, lanthanum and gadolinium to 0.10; at least one element from the group: cerium, praseodymium and neodymium up to 0.10; at least one element from the group: magnesium, calcium and barium up to 0.10; nickel - balance.

EFFECT: enabling increase in long-term strength at temperatures of 900–1000 °C with simultaneous increase of resistance to gas corrosion, as well as increase of structural stability of alloy for resource.

2 cl, 2 tbl, 5 ex