MONO-CRYSTAL SUPER-ALLOY ON BASE OF Ni Russian patent published in 2011 - IPC C22C19/05 

FIELD: metallurgy.

SUBSTANCE: alloy contains from 5.0 wt % to 7.0 wt % Al, from 4.0 wt % to 10.0 wt % Ta, from 1.1 wt % to 4.5 wt % Mo, from 4.0 wt % to 10.0 wt % W, from 3.1 wt % to 8.0 wt % Re, from 0.0 wt % to 2.0 wt % Hf, from 2.5 wt % to 8.5 wt % Cr, from 0.0 wt % to 9.9 wt % Co, from 0.0 wt % to 4.0 wt % Nb and from 1.0 wt % to 14.0 wt % Ru, Ni and unavoidable impurities - the rest. Contents of Cr, Hf and Al are preferably chosen so, that value of parametre of oxidation OP is not less, than 108.

EFFECT: raised resistance of alloy to oxidation at maintaining high resistance to creep.

31 cl, 2 tbl, 22 ex, 10 dwg