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Application

2002111321/02, 2002-04-25

(24)

Start date

2002-04-25

(22)

Actual filing date

2002-04-25

(45)

Published

2004-08-20

(72)

Inventor

Smyslov A.M.Dyblenko Ju.M.Smyslova M.K.Lisjanskij A.S.Tikhomirov S.A.Simin O.N.Tsibulina I.N.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Predprijatie

METHOD FOR PROCESSING OF SURFACES OF STEAM TURBINE VANES MADE OF TITANIUM ALLOY Russian patent published in 2004 - IPC

Abstract RU 2234556 C2

FIELD: power machinery construction.

SUBSTANCE: method involves providing sequential strengthening of article surface by nitrogen ion implantation; performing stabilizing annealing process; after ion implantation process, providing ionic-plasma deposition of titanium nitride coat at discharge current of 90-110 A, discharge voltage of 50-60 V and nitrogen pressure of from 3·10^-1 to 4·10^-1 Pa. Ionic implantation, deposition of coating and stabilizing annealing processes are performed in single vacuumizer.

EFFECT: increased strengthening of steam turbine vane surface and, accordingly, increased resistance of vane to moisture-vapor erosion, corrosion, and improved fatigue and adhesion strength.

2 cl, 1 tbl, 1 ex

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RU 2 234 556 C2

Authors

Smyslov A.M.

Dyblenko Ju.M.

Smyslova M.K.

Lisjanskij A.S.

Tikhomirov S.A.

Simin O.N.

Tsibulina I.N.

Dates

2004-08-20—Published

2002-04-25—Filed