METHOD OF MAKING TURBINE ROTOR BLADE Russian patent published in 2019 - IPC C22F1/10 C22F1/00 F01D5/12 F01D25/00 F01D25/12 

FIELD: machine building.

SUBSTANCE: present invention relates to a method of making turbine rotor blade. Method of making a turbine rotor blade using a forging alloy based on Ni comprises a step of softening, including a hot forging step and a cooling step, comprising increasing content γ'-phase that is not coherent with γ-phase, which is a matrix phase in a forging alloy based on Ni; a first processing step, comprising forming at least two structural elements constituting the rotor blade, using a forging alloy based on Ni, carried out after the softening step; second processing step, which consists in formation of cooling structure elements in each of structural elements in form of cooling flow passage channel; and third processing step, consisting in mutual connection of structural elements by means of friction welding with mixing; wherein content γ'-phase in forging alloy based on Ni is at temperature not lower than 1,050°C not less than 10 mol%, but not more than 40 mol%.

EFFECT: development of the turbine rotor blade making method using the forging alloy based on Ni with high manufacturability and high degree of freedom at design of the cooling structure.

12 cl, 4 tbl, 4 dwg