Title:
TITANIUM ALLOY AND METHOD OF MANUFACTURING TITANIUM ALLOY MATERIAL
Document Type and Number:
WIPO Patent Application WO/2005/118898
Kind Code:
A1
Abstract:
Titanium alloys described in (1) and (2) that have an adequate cold working and an excellent superplastic characteristic and a method (3) of manufacturing a titanium alloy are provided. (1) A titanium alloy characterized by containing 2.0 to 4.0 mass% of Al, 4.0 to 9.0 mass% of V, 0 to 2.0 mass% of Zr, 0 to 3.0 mass% of Sn, and the balance composed of Ti and impurities. (2) A titanium alloy containing 2.0 to 4.0 mass% of Al, 4.0 to 9.0 mass% of V, 0 to 2.0 mass% of Zr, 0 to 3.0 mass% of Sn, one or more selected from 0.20 to 1.0 mass% of Fe, 0.01 to 1.0 mass% of Cr, 0.01 to 1.0 mass% of Cu, and 0.01 to 1.0 mass% of Ni, and the balance composed of Ti and impurities, the alloy being characterized in that the Veq expressed by formula (1) below lies in the range of 4.0 to 9.5. In formula (1), the terms on the right side represent the respective contents of the elements. Veq=V+1.9Cr+3.75Fe (1) (3) A method of manufacturing a titanium alloy characterized in that the titanium alloy described in (1) or (2) is cold worked with a reduction of area of 40 mass% or more.
Inventors:
KURODA ATSUHIKO (JP)
Application Number:
PCT/JP2004/007614
Publication Date:
December 15, 2005
Filing Date:
June 02, 2004
Export Citation:
Assignee:
SUMITOMO METAL IND (JP)
KURODA ATSUHIKO (JP)
KURODA ATSUHIKO (JP)
International Classes:
C22C14/00; C22F1/00; C22F1/18; (IPC1-7): C22C14/00; C22F1/18; C22F1/00
Foreign References:
| JPH05117791A | 1993-05-14 | |||
| JPH04301044A | 1992-10-23 | |||
| JP2004183079A | 2004-07-02 | |||
| JP8019502B2 | ||||
| JP8023053B | ||||
| US5980655A | 1999-11-09 | |||
| US2804409A | 1957-08-27 |
Other References:
N. FURUSHIRO: "Titanium", vol. 80, 1980, METALLURGICAL SOCIETY OF AIME, pages: 993 - 998
T. OKA: "What is being studied about titanium materials in Japan?", 1 December 1989, THE IRON AND STEEL INSTITUTE OF JAPAN, pages: 58 - 60
See also references of EP 1772528A4
T. OKA: "What is being studied about titanium materials in Japan?", 1 December 1989, THE IRON AND STEEL INSTITUTE OF JAPAN, pages: 58 - 60
See also references of EP 1772528A4
Attorney, Agent or Firm:
Honoue, Terutada (17-23 Higashinaniwa-cho 5-chome, Amagasaki-sh, Hyogo 92, JP)
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