CASTABLE ALLOY ON BASIS OF INTERMETALLIDE NiAl AND PRODUCT IMPLEMENTED OF IT Russian patent published in 2009 - IPC C22C19/05 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy field, particularly it relates castable alloys on the basis of intermetallide Ni₃Al and products made of it, received by method of precision moulding by dispensable patterns. Alloy contains aluminium, cromium, tungsten, molybdenum, titanium, carbon, zirconium, lanthanum, nickel and attached foreign materials, at following ratio of components , wt %: aluminium 7.8 - 9.04, chrome 5.0 - 6.5, tungsten 2.7 - 4.0, molybdenum 3.0 - 4.0, titanium 0.8 - 1.5, carbon 0.001 - 0.02, zirconium 0.05 - 0.5, lanthanum 0.016 - 0.25, nickel and attached foreign material - the rest. In the capacity of attached foreign material it contains, wt %: Iron is not more than 0.3 and sulfur not more than 0.005 of each.

EFFECT: increasing of heat resistance at 1200°C and durability of products in the range of operating temperatures 1000-1100°C at saving high high-temperature strength and technological plasticity.

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