The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2017
Filed:
Jun. 28, 2013
Nhk Spring Co., Ltd., Yokohama-shi, Kanagawa, JP;
Tohoku University, Sendai-shi, Miyagi, JP;
Hiroaki Matsumoto, Sendai, JP;
Akihiko Chiba, Sendai, JP;
Sang-Hak Lee, Yokohama, JP;
Yoshiki Ono, Yokohama, JP;
NHK SPRING CO., LTD., Kanagawa, JP;
TOHOKU UNIVERSITY, Miyagi, JP;
Abstract
The present invention provides an α+β type titanium alloy and a production method therefor, which has an ultrafine structure causing superplasticity under low temperatures and has a high deformation ratio compared to conventional α+β type Ti alloys. The alloy has an ultrafine structure made of equiaxial crystals in which an area ratio of crystals having a grain diameter of 1 μm or less is 60% or more, and maximum frequency grain diameter is 0.5 μm or less, wherein a portion in which the integration degree of plane orientation of the hexagonal close-packed crystal is 1.00 or more exists within a range of 0 to 60 degrees with respect to a normal line of a processed surface of the alloy.