METHOD OF INTERMETALLIC ALLOYS PROCESSING, BASED ON TITANIUM GAMMA ALUMINIDE

摘要

FIELD: metallurgy.;SUBSTANCE: method of intermetallic alloys processing, based on titanium gamma aluminide, which includes directional, floating-zone refining of the casting cylindrical billet from the intermetallic alloy, based on the gamma titanium aluminide in the inert gas atmosphere. Directional, floating-zone refining of the billet is carried out in the vertical reactor. Heating and melting of the billet is carried out by means of the inductor, moving from the bottom to the top with the constant speed of 150 mm/h with the power, providing the melted zone length, not exceeding the casting diameter and the axial temperature gradient of at least 300°C/cm, using the alternating induction current with the frequency in the range of 10 kHz - 1 MHz. Argon or helium is used as the inert gas.;EFFECT: yield limit and alloys strength values are increased, the mechanical properties uniformity is enhanced by creating the ordered lamellar-granular phase alloys microstructure.;2 cl, 3 dwg, 1 tbl, 1 ex