Title:
Ni-BASED UNIDIRECTIONALLY SOLIDIFIED ALLOY
Document Type and Number:
WIPO Patent Application WO/2017/154809
Kind Code:
A1
Abstract:
The present invention provides a first generation Ni-based unidirectionally solidifed alloy that contains neither Co nor Re. This Ni-based unidirectionally solidified alloy has excellent TMF properties, excellent creep properties, and an excellent environmental resistance and exhibits an excellent cost performance at a practical level. The Ni-based unidirectionally solidified alloy according to one embodiment of the present invention contains 6-12 mass% Cr, 0.4-3.0 mass% Mo, 6-10 mass% W, 4.0-6.5 mass% Al, 0-1 mass% Nb, 8-12 mass% Ta, 0-0.15 mass% Hf, 0.01-0.2 mass% Si, 0-0.04 mass% Zr, 0.01-0.03 mass% B, and 0.01-0.3 mass% C, with the remainder comprising Ni and unavoidable impurities.
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Inventors:
KAWAGISHI KYOKO (JP)
HARADA HIROSHI (JP)
YOKOKAWA TADAHARU (JP)
KOIZUMI YUTAKA (JP)
KOBAYASHI TOSHIHARU (JP)
SAKAMOTO MASAO (JP)
YUYAMA MICHINARI (JP)
HARADA HIROSHI (JP)
YOKOKAWA TADAHARU (JP)
KOIZUMI YUTAKA (JP)
KOBAYASHI TOSHIHARU (JP)
SAKAMOTO MASAO (JP)
YUYAMA MICHINARI (JP)
Application Number:
PCT/JP2017/008676
Publication Date:
September 14, 2017
Filing Date:
March 06, 2017
Export Citation:
Assignee:
NAT INST FOR MATERIALS SCIENCE (JP)
International Classes:
C22C19/05; F01D5/28; F01D25/00; F02C7/00; C22F1/00; C22F1/10
Domestic Patent References:
| WO2006104059A1 | 2006-10-05 |
Foreign References:
| JP2014034720A | 2014-02-24 | |||
| JP2005097650A | 2005-04-14 | |||
| JPS62116748A | 1987-05-28 |
Other References:
See also references of EP 3428297A4
Attorney, Agent or Firm:
NISHIZAWA Toshio et al. (JP)
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