1. Effect of Diffusion Annealing Temperature on the Formation Process and Properties of a Carbon–Aluminum Composite Layer on Pure Titanium
- Author
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Hongzhan Li, Li Zhengxian, Yan-Feng Wang, Youping Ma, Yifei Wang, and Shouchang Ji
- Subjects
Materials science ,Annealing (metallurgy) ,Scanning electron microscope ,Composite number ,chemistry.chemical_element ,wear resistance ,lcsh:Technology ,Article ,Carburizing ,carbon–aluminum composite layer ,X-ray photoelectron spectroscopy ,General Materials Science ,titanium ,Composite material ,lcsh:Microscopy ,lcsh:QC120-168.85 ,lcsh:QH201-278.5 ,lcsh:T ,Sputter deposition ,Microstructure ,chemistry ,lcsh:TA1-2040 ,lcsh:Descriptive and experimental mechanics ,lcsh:Electrical engineering. Electronics. Nuclear engineering ,lcsh:Engineering (General). Civil engineering (General) ,lcsh:TK1-9971 ,Titanium - Abstract
A carbon&ndash, aluminum composite layer was prepared on the surface of pure titanium by double glow plasma carburizing, magnetron sputtering aluminizing, and vacuum-diffusional annealing treatment. The microstructure, phase composition, and properties of the composite layer obtained at different annealing temperatures were investigated by scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and the ball-on-disc wear method. Results showed that the layer contained a mixture of TiAl3, Ti2Al5, and TiC phases at 650 °, C for 6 h, which can significantly enhance the hardness and wear resistance of pure titanium. The layer exhibited a higher hardness of around 1231 HV0.1, a lower friction coefficient of 0.33, and lower wear volumes of 0.018 mm3 than those of the titanium substrate.
- Published
- 2019
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