Research on the wear and corrosion resistance of Ni–GO–TiC composite coating by scanning jet electrodeposition

Abstract

The Ni-GO-TiC nano-composite coating was prepared by scanning jet electrodeposition. The morphologies and microstructures of the composite coating were analyzed by FESEM and XRD, and the wear and corrosion resistance of the composite coating were studied. Studies have shown that the Ni-GO-TiC composite coating has a micro-nano ridge shape structure. The addition of nano TiC and GO does not change the structure but refines the grain growth of the Ni matrix metal. Nano TiC can effectively prevent GO from agglomerating, improve the dispersion, and further enhance the wear resistance of the Ni-GO-TiC composite coating. In addition, the corrosion resistance of the Ni-GO-TiC composite coating has also been greatly improved. Compared with pure Ni coating, the corrosion current density is reduced from 51.30 μA·cm-2 to that of the Ni-GO-TiC composite coating to 1.712 μA·cm-2. Nano-TiC and GO are used as reinforcing phases to refine the grains of the composite coating and effectively inhibit the penetration of corrosive media.

Enhancing the Mechanical Properties of Waterborne Polyurethane Paint by Graphene Oxide for Wood Products

“…This elevation in pencil hardness may be ascribed to the interaction between GO and resin molecules and the affected cross-linking degree. The sand ability and alkali resistance of the paint films show no significant difference, displaying the same perfor- The added GO could be uniformly distributed in the WPU film without obvious agglomerates as shown in Figure 3f, indicating that GO has good compatibility with WPU [37]. The WPU lacquer film shows certain crystallization, with typical characteristic diffraction peaks among 5~20 • .…”

Preparation and characterization of Ni-Co-TiN/CeO2 composite coating by jet electrodeposition for improved mechanical and anti-corrosion properties

“…Jet electrodeposition is a new type of electrochemical deposition technique, which is to spray electrolyte onto the cathode at high speed, metal ions are deposited on the cathode surface by a reduction reaction [12][13][14][15][16]. Relative to bath plating, jet electrodeposition has the advantages of a faster deposition rate, more uniform deposition, higher deposition quality and easier operation, which is a more efficient and high-quality metal coating preparation technology [12][13][14]. Recently, many studies have focused on adding some reinforced phases, such as SiC [4], TiN [17], CeO 2 [18], WC [19], SiO 2 [20], and Al 2 O 3 [21], into the Ni matrix to improve the physical and chemical properties of coatings.…”