Title:
TITANIUM COMPOSITE MATERIAL AND TITANIUM MATERIAL FOR HOT WORKING
Document Type and Number:
WIPO Patent Application WO/2017/018510
Kind Code:
A1
Abstract:
A titanium composite material 1 is provided with a first surface layer section 2, an inner layer section 4, and a second surface layer section 3. The first surface layer section 2 and the second surface layer section 3 comprise a titanium alloy. The inner layer section 4 comprises industrial pure titanium having voids therein. The chemical composition of at least one of the first surface layer section 2 and the second surface layer section 3 includes, in mass%, 0.1-3.0% of B and a remainder of Ti and impurities. The proportion of the total thickness of the titanium composite material 1 occupied by the thickness of at least one of the first surface layer section 2 and the second surface layer section 3 is 5-40%. The volume fraction of the voids in a cross section perpendicular to the plate thickness direction is greater than 0% and equal to or less than 30%.
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Inventors:
KITAURA TOMOYUKI (JP)
SHIRAI YOSHIHISA (JP)
FUJII HIDEKI (JP)
SHIRAI YOSHIHISA (JP)
FUJII HIDEKI (JP)
Application Number:
PCT/JP2016/072332
Publication Date:
February 02, 2017
Filing Date:
July 29, 2016
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B21B1/02; B21B3/00; C22C14/00; C22F1/00; C22F1/18; G21F1/08; G21F3/00
Foreign References:
| JPH01168833A | 1989-07-04 | |||
| JP2012077346A | 2012-04-19 | |||
| JPS6380904A | 1988-04-11 | |||
| US5579988A | 1996-12-03 |
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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