Title:
IRON-CHROMIUM-ALUMINUM-BASED OXIDE DISPERSION STRENGTHENED STEEL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2016/140258
Kind Code:
A1
Abstract:
[Problem] To provide: an iron-chromium-aluminum-based oxide dispersion strengthened steel which can exhibit excellent high-temperature strength even at high temperatures of 1000°C or higher and which does not undergo the deterioration of oxidation resistance; and a method for producing the steel. [Solution] An oxide dispersion strengthened steel 1 which has an aluminum oxide coating film 2 formed on a surface thereof and in which a yttrium-zirconium composite oxide 3 is dispersed, wherein excess oxygen that is oxygen existing in the oxide dispersion strengthened steel 1 excessively more than the amount required for forming yttrium oxide is contained at a molar ratio of 2 or more relative to the amount of zirconium.
Inventors:
UKAI SHIGEHARU (JP)
OONO NAOKO (JP)
HAYASHI SHIGENARI (JP)
OHTSUKA SATOSHI (JP)
KAITO TAKEJI (JP)
KIMURA AKIHIKO (JP)
TORIMARU TADAHIKO (JP)
OONO NAOKO (JP)
HAYASHI SHIGENARI (JP)
OHTSUKA SATOSHI (JP)
KAITO TAKEJI (JP)
KIMURA AKIHIKO (JP)
TORIMARU TADAHIKO (JP)
Application Number:
PCT/JP2016/056402
Publication Date:
September 09, 2016
Filing Date:
March 02, 2016
Export Citation:
Assignee:
NAT UNIV CORP HOKKAIDO UNIV (JP)
NIPPON NUCLEAR FUEL DEV (JP)
NIPPON NUCLEAR FUEL DEV (JP)
International Classes:
C22C38/00; B22F1/00; C22C33/02; C22C38/28; B22F3/14; B22F3/24
Foreign References:
| JPH03232920A | 1991-10-16 | |||
| JP2010065302A | 2010-03-25 | |||
| JPH09269198A | 1997-10-14 | |||
| JP2004131816A | 2004-04-30 | |||
| JPH0734179A | 1995-02-03 |
Attorney, Agent or Firm:
SAGAWA Shingo et al. (JP)
Shingo Sagawa (JP)
Shingo Sagawa (JP)
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