METHOD OF MANUFACTURE OF DETAIL FROM NICKEL-BASED SUPERALLOY AND DETAIL OBTAINED BY NAMED METHOD Russian patent published in 2014 - IPC C22F1/10 C22C19/03 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, in particular, to obtaining of heat resistant nickel-based alloys with high creep and stretching resistance. The method of manufacture of the part blank from nickel-based superalloy, containing, at least, Ni - 50 wt % and in total, at least, Nb and Ta - 2.5 wt %, comprises the obtaining of the named superalloy and execution of heat treatment of the named superalloy. Heat treatment of the named superalloy is performed in a number of stages. The first stage is performed at the temperature 900-1000°C within at least 30 minutes, and the second stage - at the temperature 940-1020°C within 5-90 minutes, meanwhile the difference of temperatures between the named two stages amounts at least 20°C.

EFFECT: nickel-based alloy has high parameters of creep and stretching resistance.

21 cl, 9 dwg, 3 tbl