Ni-BASE SUPERALLOY, METHOD FOR PRODUCING SAME, AND TURBINE BLADE OR TURBINE VANE COMPONENT

Title:

Ni-BASE SUPERALLOY, METHOD FOR PRODUCING SAME, AND TURBINE BLADE OR TURBINE VANE COMPONENT

Document Type and Number:

WIPO Patent Application WO/2007/119404

Kind Code:

A1

Abstract:

Disclosed is a Ni-base superalloy having a chemical composition consisting of 3.0-5.0 wt% of Cr, 5.0-10.0 wt% of Co, 0.5-3.0 wt% of Mo, 8.0-10.0 wt% of W, 5.0-8.0 wt% of Ta, not more than 3.0 wt% of Nb, 4.5-6.0 wt% of Al, 0.1-2.0 wt% of Ti, more than 3.0 wt% but not more than 4.0 wt% of Re, 0.2-4.0 wt% of Ru, 0.01-0.2 wt% of Hf and the balance of Ni and unavoidable impurities.

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Inventors:

KOIZUMI YUTAKA (JP)
HARADA HIROSHI (JP)
YOKOKAWA TADAHARU (JP)
KOBAYASHI TOSHIHARU (JP)

Application Number:

PCT/JP2007/055450

Publication Date:

October 25, 2007

Filing Date:

March 16, 2007

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Assignee:

NAT INST FOR MATERIALS SCIENCE (JP)
KOIZUMI YUTAKA (JP)
HARADA HIROSHI (JP)
YOKOKAWA TADAHARU (JP)
KOBAYASHI TOSHIHARU (JP)

International Classes:

C22C19/05; B22D21/00; B22D27/04; C22F1/10; F01D5/28; F02C7/00; C22F1/00

Domestic Patent References:

WO2003080882A1

2003-10-02

Foreign References:

JP2005097649A	2005-04-14
JPS5919032A	1984-01-31
US5399313A	1995-03-21
JPS53146223A	1978-12-20
US4643782A	1987-02-17
US4719080A	1988-01-12
JPH0559474A	1993-03-09
JPH07138683A	1995-05-30

Other References:

See also references of EP 1997923A4
KOICHI MARUYAMA; EIJI NAKAJIMA: "Material Science of High Temperature Strength", 1997, UCHIDA ROKAKUHO PUBLISHING CO., LTD., pages: 251 - 270

Attorney, Agent or Firm:

NISHIZAWA, Toshio (11-1 Minami-Aoyama 6-chom, Minato-ku Tokyo 62, JP)

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