Title:
HIGH-STRENGTH AND HIGH-DUCTILITY TITANIUM ALLOY WITH EXCELLENT MOLDABILITY
Document Type and Number:
WIPO Patent Application WO/2023/249227
Kind Code:
A1
Abstract:
The present invention relates to a titanium alloy having excellent processability as well as superior mechanical characteristics. A Ti-Al-Fe-Sn-based titanium alloy according to an embodiment of the present invention comprises, in weight%, Ti-(3-5)%, Al-(2-4)%, Fe-(0-5)%, V-(0-2)%, Sn-(0-2)%, Zr-(0-3)%, Mo-(2-4)%, Cr-(0-0.3)%, and Si, wherein the sum of Fe+Cr+Mo is more than 5%, the sum of Fe+Cr+Mo+Al+V is less than 16%, an alpha phase with a mean effective equivalent circle diameter (hereinafter, ECD) of 1 ㎛ or larger ranges from 0% (exclusive) to 50% (exclusive) in volume%, an alpha phase with an ECD of smaller than 1 ㎛ ranges from 0% (exclusive) to 50% (exclusive) in volume%, and the titanium alloy has a microstructure in which the sum of the alpha phase with an ECD of 1 ㎛ or larger and the alpha phase with an ECD of smaller than 1 ㎛ is less than 65% and the remainder is a beta phase.
Inventors:
LEE SANG-WON (KR)
KIM JAE-HYEOK (KR)
HONG JAE-KEUN (KR)
PARK CHAN-HEE (KR)
YEOM JONG-TAEK (KR)
KIM JAE-HYEOK (KR)
HONG JAE-KEUN (KR)
PARK CHAN-HEE (KR)
YEOM JONG-TAEK (KR)
Application Number:
PCT/KR2023/005330
Publication Date:
December 28, 2023
Filing Date:
April 19, 2023
Export Citation:
Assignee:
KOREA INSTITUTE OF MAT SCIENCE (KR)
International Classes:
C22C14/00; C22C38/28
Foreign References:
| JP2005320570A | 2005-11-17 | |||
| KR102318721B1 | 2021-10-29 | |||
| KR960007428A | 1996-03-22 | |||
| JP2017145429A | 2017-08-24 | |||
| US20110017369A1 | 2011-01-27 |
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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