| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 12039552 | Materials Letters | 2019 | 9 Pages |
Abstract
In this study, the oxidation behavior of a supercooled Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 HE-BMG was investigated. The mass gain of specimens during oxidation is very limited, and the maximum value is lower than 0.08â¯Ãâ¯10â2â¯g/cm2 after two hours of insulation. With the insulation duration prolonging, the mass gain decreases, indicating that the oxides formed are not stable and could decompose after long-term heating. Meanwhile, the oxidation kinetics doesn't follow the parabolic rate law, indicating that it is not a diffusion-controlled process. Even for specimens oxidized at 713â¯K for 120â¯min, they are still fully amorphous. No surface precipitates, as well as continuous oxide scale structures, are formed even after oxidation for 120â¯min at 753â¯K. Therefore, it is indicated that this HE-BMG has strong thermal stability and oxidation resistance, which is much promising for thermoplastic forming.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Mao Zhang, Pan Gong, Ning Li, Guangping Zheng, Lei Deng, Junsong Jin, Qiaomin Li, Xinyun Wang,