NICKEL-BASED MONOCRYSTALLINE SUPERALLOY WITH A HIGH .GAMMA.'SOLVUS

摘要

The superalloy according to the invention, suitable for the manufacture of turbo-engine parts by monocrystallization solidification, possesses the following mass composition: Cr : 3.5 to 7.5 % Mo : 0 to 1.5 % Re : 1.5 to 5.5 % Ru : 0 to 5.5 % W : 3.5 to 8.5 % Al : 5 to 6.5 % Ti : 0 to 2.5 % Ta : 4.5 to 9 % Hf : 0.08 to 0.12 % Si : 0.08 to 0.12 % the complement to 100 % consisting of Ni and possible impurities.