HEAT-RESISTANT CAST Ni-BASED ALLOY AND PRODUCT MADE OF IT Russian patent published in 2018 - IPC C22C19/05 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, in particular to corrosion and heat resistant Ni-based alloys, and can be used for production of parts of gas turbine engines and units that operate for a long time in corrosive environments at temperatures up to 700 °C. Heat-resistant cast Ni-based contains, wt%: carbon up to 0.08, chromium 16–21; aluminium 0.3–2.0; titanium 0.5–2.0; molybdenum 2.0–3.5; iron 8.0–20.0; niobium 4.0–6.0; boron up to 0.02; tungsten up to 2.5; cobalt up to 10.2; zirconium up to 0.08; lanthanum up to 0.20; barium up to 0.03; rhenium up to 0.02; hafnium up to 0.10; nickel – the rest being.

EFFECT: long-term strength, corrosion resistance, structural stability, service life of an alloy at a temperature of 650 °C increase.

2 cl, 2 tbl, 5 ex