Effect of the Codeposition Ions on Structural and Tribological Properties of Electro-Brush Plated Coating

The effects of the codeposition ions on structural and tribological properties of electro-brush plated coatings were investigated. The microstructure and phase structure were studied with scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). The hardness and tribological properties of several coatings with different kind of codeposition ions were studied. Results show that among the coatings with different FeCl2 contents in electrolyte, the Fe400 coating has the best surface property. When proper chemical ion W codeposited with iron ion is added, the hardness of the coatings is improved obviously and the Fe-WII coating has the best properties. When proper element of Cu is added, the hardness and tribological properties of the Fe-W-Cu coatings are also improved. Besides, the interface bond strength between the coating and the substrate is improved obviously, and the Fe-W-CuII coating has the best properties.