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2 148 099

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Application

99101034/02, 1999-01-18

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Start date

1999-01-18

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Actual filing date

1999-01-18

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Published

2000-04-27

(72)

Inventor

Kablov E.N.Kishkin S.T.Logunov A.V.Petrushin N.V.Sidorov V.V.Demonis I.M.Eliseev Ju.S.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Aviatsionnykh Materialov

HEAT-RESISTANT NICKEL-BASED ALLOY Russian patent published in 2000 - IPC

Abstract RU 2148099 C1

FIELD: metallurgy of alloys, more particularly, manufacture of heat resistant nickel-based alloys by directed crystallization and monocrystalline casting of components, namely gas turbine vanes operating at high temperatures (1000-1100). SUBSTANCE: alloy comprises, wt.%: carbon, 0.05-0.12; chrome, 5.0-6.0; cobalt, 8.0-10.0; tungsten, 6.5-7.5; molybdenum, 0.8-1.5; aluminium 5.5-6.0; cobalt, 8.0-10.0; tantalum, 4.4-5.4, rhenium, 3.8-4.6; boron, 0.001-0.02; niobium, 0.6-1.0; cerium, 0.005-0.10; yttrium, 0.0001- 0.002; lanthanum, 0.001-0.05; neodymium, 0.0005-0.01; and nickel, the balance, provided that the following condition is observed: 9,5≤(1/2W+1/2Re+1/2Ta+Mo+Nb)≤10,5. EFFECT: improved technological and heat resistance characteristics of the alloy. 1 ex, 2 tbl

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RU 2 148 099 C1

Authors

Kablov E.N.

Kishkin S.T.

Logunov A.V.

Petrushin N.V.

Sidorov V.V.

Demonis I.M.

Eliseev Ju.S.

Dates

2000-04-27—Published

1999-01-18—Filed

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