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Title:
NICKEL BASED ALLOY
Document Type and Number:
Japanese Patent JP2004060057
Kind Code:
A
Abstract:

To provide a castable and weldable nickel based alloy exhibiting the strength and the resistance to corrosion and oxidation suitable for application to a gas turbine engine in desirable balance.

An appropriate composition of the alloy is substantially composed of 10-25 wt% cobalt, 20-28 wt% chromium, 1-3 wt% tungsten, 0.5-1.5 wt% aluminum, 1.5-2.8 wt% titanium, 0.8-1.45 wt% columbium, tantalum less than columbium, 1.15-1.45 wt% Cb + 0.508 Ta, 0.001-0.025 wt% boron, zirconium less than 0.4 wt%, 0.02-0.15 wt% carbon and a residual part substantially composed of nickel and accompanying impurities.


Inventors:
WOOD JOHN HERBERT
FENG GANJIANG
BECK CYRIL GERARD
Application Number:
JP2003000282300
Publication Date:
February 26, 2004
Filing Date:
July 30, 2003
Export Citation:
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Assignee:
GEN ELECTRIC
International Classes:
F01D9/02; C22C19/03; C22C19/05; F02C7/00; (IPC1-7): C22C19/05; F01D9/02; F02C7/00
Domestic Patent References:
JPH01104738A1989-04-21
JPH09170402A1997-06-30
JP2000502405A2000-02-29
JPS484331A
JPS487331A
Attorney, Agent or Firm:
松本 研一
小倉 博
伊藤 信和