| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7887657 | Ceramics International | 2018 | 6 Pages |
Abstract
Boron carbide (B4C) particles were embedded in nickel-tungsten (Ni-W) coatings by pulse current electrodeposition technique. Physical properties of the composite coatings were studied by XRD, SEM, EDS and Vickers micro-hardness instrument. Corrosion protection of the deposited films was investigated utilizing potentiodynamic polarization and Electrochemical Impedance Spectroscopy (EIS). Results exhibited that the addition of B4C nanoparticles into the Ni-W alloy can significantly improve the surface morphology and the micro-hardness of the composite coatings. The corrosion resistance of Ni-W-B4C nanocomposite is much better than Ni-W alloy deposit, especially when the concentration of B4C nanoparticles is 2â¯g/L in plating bath, the obtained Ni-W-B4C composite coating has the best surface morphology, the highest micro-hardness and the excellent corrosion resistance.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Teng He, Yi He, Han Li, Zubo Su, Yi Fan, Ze He,