TURBINE PART OF ALLOY WITH MAX-PHASE CONTENT Russian patent published in 2022 - IPC B22F5/04 B22F3/105 F01D5/12 F01D9/02 

FIELD: powder metallurgy.

SUBSTANCE: invention relates to powder metallurgy, in particular to the manufacture of a turbine part. It can be used for the manufacture of a turbine blade or a nozzle blade. The turbine part contains polycrystal substrate containing grains of Ti₃AlC₂ phase, while the mass fraction of this phase in the alloy is more than 97%. An average length of grains is less than 50 mcm, an average ratio of a thickness to the length of grains is from 0.4 to 0.6, and an average volume of an elementary cell of Ti₃AlC₂ phase is less than 152.4 . To form the part, powders containing at least titanium, aluminum and carbon are mixed and homogenized, followed by reactive powder sintering. The resulting product of reactive sintering is brought to a powder-like state, and spark plasma sintering of powder is carried out.

EFFECT: obtaining a part with high mechanical strength and resistance to oxidation in the range of turbine operating temperatures.

15 cl, 9 dwg