期刊
APPLIED SURFACE SCIENCE
卷 361, 期 -, 页码 49-56出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2015.11.094
关键词
Composite coating; Friction and wear; Tribological behavior
类别
资金
- National Natural Science Foundation of China [51101087]
- Natural Science Foundation of Jiangsu Province [BK20151487]
- China Postdoctoral Science Foundation [2013M540450, 2014T70520]
- Fundamental Research Funds for the Central Universities [30915014103]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Zijin Intelligent Program, Nanjing University of Science and Technology
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 mu m. 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. (C) 2015 Elsevier B.V. All rights reserved.
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