公开(公告)号：US12226826B2

公开(公告)日：2025-02-18

申请号：US17768737

申请日：2020-08-17

Applicant: University of Science and Technology Beijing

Inventor： Xin Lu ,  Yu Pan ,  Yucheng Yang ,  Jiazhen Zhang ,  Wei Xu ,  Bowen Liu ,  Ce Zhang ,  Jianzhuo Sun ,  Yanjun Liu ,  Xuanhui Qu

IPC: B22F3/10 ,  B22F1/05 ,  B22F1/12 ,  B22F9/04

Abstract: The present invention provides a high-strength and high-plasticity titanium matrix composite and a preparation method thereof. The preparation method includes: preparing high-oxygen hydride-dehydride titanium powder using a high-temperature rotary ball grinding treatment process, in which 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. %; preparing high-purity ultra-fine oxygen adsorbent powder using a wet grinding method of high-energy vibration ball grinding treatment process; in which a purity of the oxygen adsorbent powder is ≥99.9%, and a particle size of the oxygen adsorbent powder is ≤8 μm; mixing the high-oxygen hydride-dehydride titanium powder with the oxygen adsorbent powder in a protective atmosphere, and then press-forming the powder obtained after mixing to obtain a raw material blank; and performing atmosphere protective sintering treatment on the raw material blank to obtain a titanium matrix composite. The method prepares a titanium matrix composite reinforced by in-situ self-generating multi-scale Ca—Ti—O, TiC, TiB particles. The microstructure and grains are effectively refined, and the strength and plasticity of the material are significantly improved.