Title:
TITANIUM COMPOSITE MATERIAL AND TITANIUM MATERIAL FOR HOT WORKING
Document Type and Number:
WIPO Patent Application WO/2017/018522
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 thickness of at least one of the first surface layer section 2 and the second surface layer section 3 is 2 µm or more, and the proportion of the total thickness of the titanium composite material 1 occupied by said thickness is 40% or less. 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%.
Inventors:
KITAURA TOMOYUKI (JP)
SHIRAI YOSHIHISA (JP)
FUJII HIDEKI (JP)
SHIRAI YOSHIHISA (JP)
FUJII HIDEKI (JP)
Application Number:
PCT/JP2016/072344
Publication Date:
February 02, 2017
Filing Date:
July 29, 2016
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B32B15/01; B23K20/00; B32B3/26; C22C14/00; B21B1/02; B21B3/00
Domestic Patent References:
| WO2014163087A1 | 2014-10-09 |
Foreign References:
| JPH02187282A | 1990-07-23 | |||
| JPS50146557A | 1975-11-25 | |||
| JP2007332420A | 2007-12-27 | |||
| JPS63207401A | 1988-08-26 | |||
| US5579988A | 1996-12-03 | |||
| US5301403A | 1994-04-12 | |||
| US4966816A | 1990-10-30 |
Other References:
NIPPON STEEL ET AL.: "Chitan", 2014, pages 16 - 17, XP009510134, Retrieved from the Internet