Title:
TITANIUM COMPOSITE MATERIAL, AND TITANIUM MATERIAL FOR HOT WORKING
Document Type and Number:
WIPO Patent Application WO/2017/018519
Kind Code:
A1
Abstract:
Provided is a titanium composite material 1 that has a first surface layer 2, an inner layer 4, and a second surface layer 3, wherein the first surface layer 2 and the second surface layer 3 are made from a titanium alloy, the inner layer 4 is made from an industrial pure titanium that has voids, the thickness of the first surface layer 2 and/or the second surface layer 3 is at least 5 μm and accounts for at most 40% of the total thickness of the titanium composite material 1, the volume ratio of voids in a cross-section perpendicular to the plate thickness direction is greater than 0% but less than 30%, and the chemical composition of the first surface layer 2 and/or the second surface layer 3 is, by mass%, 0.10-0.60% Si, 0.1-2.0% Nb, 0.3-1.0% Ta, 0.3-1.5% Al, 0-1.5% Sn, 0-1.5% Cu, 0-0.5% Fe, with the remainder being Ti and impurities.
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Inventors:
MORI KENICHI (JP)
FUJII HIDEKI (JP)
SHIRAI YOSHIHISA (JP)
KITAURA TOMOYUKI (JP)
FUJII HIDEKI (JP)
SHIRAI YOSHIHISA (JP)
KITAURA TOMOYUKI (JP)
Application Number:
PCT/JP2016/072341
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
Foreign References:
| US5564064A | 1996-10-08 | |||
| JP2015045040A | 2015-03-12 | |||
| JPS5229407A | 1977-03-05 | |||
| JP2005290548A | 2005-10-20 | |||
| JP2008115419A | 2008-05-22 |
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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