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公开(公告)号：US20180105897A1
公开(公告)日：2018-04-19
申请号：US15792802
申请日：2017-10-25
Applicant: TOHO TITANIUM CO., LTD. , Sanyo Special Steel Co., Ltd.
Inventor： Osamu KANOU , Satoshi SUGAWARA , Hideo TAKATORI
CPC classification number: C22C1/0458 , B22F3/14 , B22F3/20 , B22F9/023 , C22C14/00
Abstract: A titanium alloy containing copper, which cannot be realized by a conventional method, is provided, having a composition in which copper is contained in titanium with no segregation, and having improved strength and hardness. In addition a method is also provided, in which the titanium alloy is produced at lower cost than in a conventional method. The α+β or β titanium alloy contains copper at 1 to 10 mass %, has a crystal phase of β and α phase or of β phase, is formed of crystal particles not more than 100 μm, and has a copper concentration per an arbitrary specified 1 mm3 portion of the crystal phase at within ±40% compared to another arbitrary specified portion. The α+β or β titanium alloy is produced by mixing 1 to 10 mass % of copper powder and the remainder of titanium alloy powder and then pressing and forming while being heated. The method for production of the α+β or β titanium alloy has a step of mixing 1 to 10 mass % of copper powder and the remainder of titanium alloy powder and a step of pressing and forming the mixture while being heated.
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公开(公告)号：US20180021854A1
公开(公告)日：2018-01-25
申请号：US15552540
申请日：2016-02-17
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Nobuo FUKADA , Osamu KANOU , Shigehisa TAKENAKA
Abstract: Provided are a titanium-based powder excellent in fluidity and shape retention property, and an ingot and a sintered article obtained using the titanium-based powder as a material. The titanium-based powder has an average circularity of 0.815 or more and less than 0.870, a CV value of particle sizes of 22 or more and 30 or less, and an angle of repose of 29 degrees or more and 36 degrees or less.
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