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1 644 534

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IPC

(21) (22)

Application

4753577/02, 1989-10-24

(22)

Actual filing date

1989-10-24

(45)

Published

1994-12-30

(72)

Inventor

Polinets V.A.Popov Eh.N.Zagrebin A.V.Polinets L.A.Poljakovskij G.M.Mel'Kumov P.N.Bulavina L.S.Rebik A.A.Litvinenko M.N.Ivanov V.V.

NICKEL-BASE ALLOY Russian patent published in 1994 - IPC

Abstract SU 1644534 A1

FIELD: metallurgy. SUBSTANCE: alloy has, wt.-%: chrome 12-18; tungsten 0.1-1.5; molybdenum 0.5-6.0; niobium 0.1-2.0; aluminium 2-6; zirconium 0.005-0.1; rare-earth metals 0.001-0.15; boron 0.005-0.2; carbon 0.05-0.15; silicon 0.01-0.4; manganese 0.01-0.4; iron 0.1-7.0; nitrogen 0.001-0.08; yttrium 0.0005-0.05; titanium 0.5-3.5, and nickel - the rest. Safety coefficient of alloy is 1.09-1.16. Turbine wheel mass is 1.244-1.16 kg. Prolonged strength at 800 C at stress 400 MPa is 34-110 h; tensile strength limit at 800 C is 61-72 MPa, relative elongation at 800 C is 5.0-10.7%. EFFECT: increased safety of turbocompressor turbine at 800 C, decreased mass of turbine and heat resistance of latter. 2 tbl

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SU 1 644 534 A1

Authors

Polinets V.A.

Popov Eh.N.

Zagrebin A.V.

Polinets L.A.

Poljakovskij G.M.

Mel'Kumov P.N.

Bulavina L.S.

Rebik A.A.

Litvinenko M.N.

Ivanov V.V.

Dates

1994-12-30—Published

1989-10-24—Filed