US 12,226,826 B2
High-strength and high-plasticity titanium matrix composite and preparation method thereof
Xin Lu, Beijing (CN); Yu Pan, Beijing (CN); Yucheng Yang, Beijing (CN); Jiazhen Zhang, Beijing (CN); Wei Xu, Beijing (CN); Bowen Liu, Beijing (CN); Ce Zhang, Beijing (CN); Jianzhuo Sun, Beijing (CN); Yanjun Liu, Beijing (CN); and Xuanhui Qu, Beijing (CN)
Assigned to UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, Beijing (CN)
Appl. No. 17/768,737
Filed by University of Science and Technology Beijing, Beijing (CN)
PCT Filed Aug. 17, 2020, PCT No. PCT/CN2020/109487
§ 371(c)(1), (2) Date Apr. 13, 2022,
PCT Pub. No. WO2022/021488, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 202010745078.1 (CN), filed on Jul. 29, 2020.
Prior Publication US 2023/0191482 A1, Jun. 22, 2023
Int. Cl. B22F 3/10 (2006.01); B22F 1/05 (2022.01); B22F 1/12 (2022.01); B22F 9/04 (2006.01)
CPC B22F 3/1007 (2013.01) [B22F 1/05 (2022.01); B22F 1/12 (2022.01); B22F 9/04 (2013.01); B22F 2009/043 (2013.01); B22F 2009/049 (2013.01); B22F 2201/11 (2013.01); B22F 2203/11 (2013.01); B22F 2301/205 (2013.01); B22F 2303/45 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for preparing a high-strength and high-plasticity titanium matrix composite, comprising the following steps:
S1: preparing high-oxygen hydride-dehydride titanium powder using a high-temperature rotary ball grinding treatment process, wherein the prepared hydride-dehydride titanium powder has a particle size of 10-40 μm, and has an oxygen content of 0.8-1.5 wt. %;
S2: preparing high-purity ultra-fine oxygen adsorbent powder using a wet grinding method of high-energy vibration ball grinding treatment process; wherein a purity of the oxygen adsorbent powder is ≥99.9%, and a particle size of the oxygen adsorbent powder is ≤8 μm; and the oxygen adsorbent is selected from at least one of CaC2 and CaB6;
S3: preparing a raw material blank, wherein the high-oxygen hydride-dehydride titanium powder is mixed with the high-purity ultra-fine oxygen adsorbent powder in a protective atmosphere, and then the powder obtained after mixing is press-formed to obtain a raw material blank; and
S4: sintering, wherein the raw material blank obtained in step S3 is subjected to atmosphere protective sintering treatment to obtain a titanium matrix composite.