Preparation and tribological behavior of Ni-graphene composite coating under room temperature
| Autor: | He Yong, Dangsheng Xiong, Yongkun Qin, Ji Yujuan, Chen Juanjuan, Jianliang Li |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Composite number General Physics and Astronomy 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences law.invention symbols.namesake Coating law Ceramic Composite material Graphene Surfaces and Interfaces General Chemistry Tribology 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Surfaces Coatings and Films Composite coating visual_art engineering visual_art.visual_art_medium symbols Crystallite 0210 nano-technology Raman spectroscopy |
| Zdroj: | Applied Surface Science. 361:49-56 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2015.11.094 |
| Popis: | In this paper, Ni-graphene composite coatings with different graphene addition amounts were prepared on 45 steel disk by using dipulse composite electrodeposition technology. Meanwhile, the influence of plating time, bath temperature and load on friction and wear of the coating was studied. The tribological behavior of composite coating was tested against a Si3N4 ceramic ball under dry condition. Cross-sectional morphologies showed that Ni-graphene coating was successfully coated on the substrate with an average thickness of 85 ± 5 μm. XRD analysis concluded that with the increase of addition amount of graphene, the average crystallite size of coating decreased. EDS analyses and Raman spectra proved the presence of graphene. Friction coefficient of composite coating decreased with the increase of graphene addition amounts, while the hardness increased. Meanwhile, the wear resistance of composite coating improved. The optimum experimental conditions were obtained. |
| Databáze: | OpenAIRE |
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