NIMTE OpenIR  > 2018专题
Microstructure evolution, wear and corrosion resistance of Cr-C nanocomposite coatings in seawater
Zhao, Daqiang; Jiang, Xin; Wang, Yongxin; Duan, Wenshan; Wang, Liping
2018
Source PublicationAPPLIED SURFACE SCIENCE
Volume457Pages:914-924
AbstractCr-C nanocomposite coatings were deposited by multi-arc ion plating with various argon/acetylene mixtures. The XRD, XPS and HRTEM characterization suggest that the coatings consist of a carbide phase and an amorphous carbon-rich phase. The carbide phase is shown to be CrC with a fcc NaCl (B1) structure. Experiment findings and theoretical calculations reveal phase segregation of sp(2)-carbon from carbides in which the excess amounts of carbon are incorporated. Nanoindentation, scratch test and Rockwell indentation were performed to investigate the toughness and adhesion ability. A significant improvement of adhesion and toughness is achieved by increasing C content at the expense of hardness. The wear resistance of Cr-C coatings is controlled by the friction rather than hardness. Compared to dry friction, lower friction coefficients but higher wear rates were obtained under seawater condition. The corrosion behavior of Cr-C nanocomposite coatings with different C was determined by potentiodynamic polarization test and electrochemical impedance spectroscopy (EIS). The coatings with higher Cr content display excellent anti-corrosion properties in seawater.
Keywordh Thin-films Toughness Measurement Composite Coatings Hard Coatings Carbon Films Carbide Design Behavior Spectra
Subject AreaMaterials Science
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/17085
Collection2018专题
Recommended Citation
GB/T 7714
Zhao, Daqiang,Jiang, Xin,Wang, Yongxin,et al. Microstructure evolution, wear and corrosion resistance of Cr-C nanocomposite coatings in seawater[J]. APPLIED SURFACE SCIENCE,2018,457:914-924.
APA Zhao, Daqiang,Jiang, Xin,Wang, Yongxin,Duan, Wenshan,&Wang, Liping.(2018).Microstructure evolution, wear and corrosion resistance of Cr-C nanocomposite coatings in seawater.APPLIED SURFACE SCIENCE,457,914-924.
MLA Zhao, Daqiang,et al."Microstructure evolution, wear and corrosion resistance of Cr-C nanocomposite coatings in seawater".APPLIED SURFACE SCIENCE 457(2018):914-924.
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