Knowledge Management System Of Institute of metal research，CAS
| In-situ synthesis and superhigh modulus of network structured TiC/Ti composites based on diamond-Ti system | |
| Sun, Fengbo; Huang, Lujun; Zhang, Rui; Wang, Shuai; Jiang, Shang; Sun, Yuan; An, Qi; Jiao, Yang; Geng, Lin | |
| 2020-09-05 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
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| Volume | 834 |
| Abstract | In order to enhance the elastic modulus and strength of titanium, novel continuous network structured TiC particle reinforced Ti (TiC/Ti) composites were successfully fabricated by hot pressing sintering based on diamond-Ti system. The results showed that 5 vol% fine diamond powders can be homogeneously adhered onto the surface of large Ti powders by lower energy ball milling process of 250 rpm/5 h/3:1. The mixed powders resulted in equiaxed network microstructure of TiC/Ti composites formed by continuous TiC particle reinforcement around large Ti powders after in-situ reaction between diamond and Ti. However, high energy ball milling process of 300 rpm/10 h/10:1 must be employed due to excessive diamond powders, which can result in TiC/Ti composites with a novel flattened network microstructure. Among the composites, the one introduced by 10 vol% diamond exhibited the highest elastic modulus of 184 GPa, which was increased by 64% compared with pure Ti (112 GPa). The composites with 5 vol% and 7.5 vol% diamond presented 830 MPa and 1480 MPa compressive yield strengths respectively, which were 1.9- and 3.4-fold that of pure Ti (429 MPa). The superior elastic modulus and strength of the composites was mainly attributed to the continuous TiC network microstructure and remained reinforcement-lean region based on the Hashin-Shtrikman theory. (C) 2020 Elsevier B.V. All rights reserved. |
| DOI | 10.1016/j.jallcom.2020.155248 |
| WOS ID | WOS:000534491400006 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/82541 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Sun, Fengbo,Huang, Lujun,Zhang, Rui,et al. In-situ synthesis and superhigh modulus of network structured TiC/Ti composites based on diamond-Ti system[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,834. |
| APA | Sun, Fengbo.,Huang, Lujun.,Zhang, Rui.,Wang, Shuai.,Jiang, Shang.,...&Geng, Lin.(2020).In-situ synthesis and superhigh modulus of network structured TiC/Ti composites based on diamond-Ti system.JOURNAL OF ALLOYS AND COMPOUNDS,834. |
| MLA | Sun, Fengbo,et al."In-situ synthesis and superhigh modulus of network structured TiC/Ti composites based on diamond-Ti system".JOURNAL OF ALLOYS AND COMPOUNDS 834(2020). |
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