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IPC

(21) (22)

Application

2004107412/02, 2004-03-15

(24)

Start date

2004-03-15

(22)

Actual filing date

2004-03-15

(45)

Published

2005-09-10

(72)

Inventor

Khovanov A.N.Kachanov E.B.Eremenko V.I.Vlasova O.N.Vaulin D.D.Fatkullin O.Kh.Ljakhova L.V.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Institut Legkikh Splavov"

METHOD FOR THERMO-MECHANIC WORKING OF BLANKS OF PELLETIZED HIGH- ALLOY NICKEL ALLOYS Russian patent published in 2005 - IPC

Abstract RU 2259902 C1

FIELD: metallurgy, possibly manufacture of blanks of discs of pelletized high-alloy nickel alloys for gas turbine engines.

SUBSTANCE: method comprises steps of isostatic pressing, annealing, two-stage deformation with intermediate recrystallization annealing and heat treatment. At each stage deformation is performed according to normalized degree 20-25% at total deformation 35 -40%. Intermediate recrystallization annealing is realized at temperature that is by 40-50°C lower than temperature of complete dissolution of γ' - phase.

EFFECT: improved mechanical and operational properties of blanks.

1 tbl, 1 ex

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RU 2 259 902 C1

Authors

Khovanov A.N.

Kachanov E.B.

Eremenko V.I.

Vlasova O.N.

Vaulin D.D.

Fatkullin O.Kh.

Ljakhova L.V.

Dates

2005-09-10—Published

2004-03-15—Filed