期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 576, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2021.121231
关键词
Ti-based bulk metallic glass; Oxidation; Wear; Corrosive-wear; Corrosion
资金
- National Natural Science Foundation of China [21701024]
- Scientific Research Project of Fujian Provincial Department of Science and Technology [2020I1009, 2021H0023]
- Scientific Research Project of Fujian University of Technology [GY-Z17152, GY-Z21032, GY-Z20057]
The study found that oxidation treatment can improve the wear resistance and corrosive-wear performance of Ti-based BMG, especially under wet-friction conditions. Increasing annealing temperature can enhance the resistance to pitting corrosion on the alloy surface.
In the present study, effects of the oxidation treatment on microstructures, wear, electrochemical, and corrosivewear performances of a TiZrCuPd bulk metallic glass (BMG) were investigated. After annealing at 300 degrees C and 400 degrees C, the Ti-based BMG showed Cu2O particles on the surface and ZrCu and Cu3Ti2 crystalline phases. The oxidation treatment improved the wear resistance of the Ti-based BMG under both dry- and wet-friction conditions. As the annealing temperature increased, the pitting-corrosion resistance of the Ti-based BMG in the phosphate buffer saline (PBS) was enhanced, which was mainly due to the relative enrichment of corrosiveresistant elements Ti, Zr, and Pd in the alloy surface. The tribocorrosion result showed that the corrosion- and passivation-current-density of the oxidized-Ti-based BMG under the sliding condition decreased with the increase in the oxidation temperature, which contributed to the enhanced corrosive-wear resistance.
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