NICKEL-BASED HEAT RESISTING ALLOY FOR FABRICATION AND REPAIR OF GAS-TURBINE UNIT BLADES Russian patent published in 2015 - IPC C22C19/05 

FIELD: metallurgy.

SUBSTANCE: invention can be used for fabrication by moulding of details of hot path of gas-turbine units operated in corrosive mediums at temperatures 700-920°C and also for repair of surface defects of items resulting from moulding or operation. The nickel-based alloy for fabrication of blades of gas turbine units contains, wt %: carbon 0.04-0.06, chromium 13.5-14.1, cobalt 14.9-15.5, tungsten 1.7-2.1, molybdenum 1.8-2.2, aluminium 2.6-2.8, hafnium 0.1-0.2, cerium 0.02±0.005, yttrium 0.02±0.005, silicon 0.1±0.03, boron 0.01±0.002, zirconium 0.05±0.01, titanium 5.55-6.05, niobium 0.1-0.2, manganese 0.07-0.13 and nickel the rest.

EFFECT: alloy is characterised by improved characteristics of long strength, resistance to oxidation and corrosion, increased structural life stability, stability of technical characteristics of alloy and repair coating.

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