NICKEL BASE ALLOY Russian patent published in 2006 - IPC C22C19/05 C22C1/02 

FIELD: metallurgy, namely nickel base alloys suitable for operating at super high temperatures.

SUBSTANCE: nickel base alloy contains, mass %: carbon, up to 0.10; chrome, 12 - 20; molybdenum, up to 4; tungsten, up to 6 at total content of molybdenum and tungsten, (2 - 8); cobalt, 5 - 12; iron, up to 14; niobium, 4 - 8; aluminum, 0.6 - 2.6; titanium, 0.4 - 1.4; phosphorus, 0.003 - 0.03; boron, 0.003 - 0.015, nickel and irregular impurities. Sum of atomic percentage content of aluminum and atomic percentage content of titanium is in range 2 - 6 %. Relation of atomic percentage content of aluminum to atomic percentage content of titanium is no less than 1.5. Atomic percentage content of titanium plus aluminum divided by atomic percentage content of niobium is in range 0.8 - 1.3. Nickel base alloy may be produced in the form of article such as disc, blade, clamp, casing or shaft. Method for producing nickel base alloy is also described.

EFFECT: nickel base alloy with improved properties.

45 cl, 12 dwg, 14 tbl