GAS TURBINE BLADE GTD-110M Russian patent published in 2019 - IPC F01D5/28 F01D5/12 C23F17/00 C21D9/08 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and can be used in production and repair of blades operating under conditions of gas-abrasive erosion. Gas turbine GTD-110M blade has heat-resistant underlayer with thickness of 150–200 mcm and ceramic thermal barrier layer applied on its surface by high-speed flame spraying method. Ceramic thermo-barrier layer is sputtered by plasmatron with thickness of 100–120 mcm, then the blade is subjected to two-stage treatment, first in a vacuum at pressure 1×10–4 mmHg is heated to temperature of 1,050 °C for 3–4 hours, held at the same temperature for 2 hours and cooled to temperature of 700 °C at speed of 40–50 °C. After that, air is heated to temperature of 850 °C for 2.5–3 hours, held at the same temperature for 16 hours and cooled for 4.7 hours to normal temperature.

EFFECT: invention increases gas-abrasion resistance of the protective coating of the gas turbine blade.

1 cl