HEAT BARRIER COATING BASED ON ZIRCONIUM DIOXIDE, WHICH IS APPLIED DIRECTLY TO MONOCRYSTALLINE ALLOYS BASED ON NICKEL Russian patent published in 2012 - IPC C23C14/08 C22C19/05 F01D5/18 F01D1/00 

FIELD: metallurgy.

SUBSTANCE: invention refers to application method of heat barrier coating based on zirconium dioxide to monocrystalline heat resistant alloy based on nickel, which has the following composition, wt %: 3.5-7.5 Cr, 0-1.5 Mo, 1.5-5.5 Re, 2.5-5.5 Ru, 3.5-8.5 W, 5-6.5 Al, 0-2.5 Ti, 4.5-9 Ta, 0.08-0.12 Hf, 0.08-0.12 Si, Ni and inevitable impurities of up to 100% are the rest. To the above heat resistant alloy there applied is zirconium dioxide stabilised at least with one oxide of the element chosen from the group consisting of rare-earth metals, or combination of tantalum oxide and at least one oxide of rare-earth metal, or combination of niobium oxide and at least one oxide of rare-earth metal. A part is made from the above heat resistant alloy and the coating is applied to it using the above described method. Turbine blade includes the above part; turbomachine includes the above blade.

EFFECT: increasing service life of heat resistant alloy with heat barrier coating; simplifying manufacturing process as a whole and reducing manufacturing costs.

8 cl, 1 dwg, 1 tbl