AI Article Synopsis
- The study focuses on synthesizing a new material, PDA-functionalized vanadium carbide (P-VC), and evaluating its effects when added to Ni-W-B coatings.
- Experimental results show that P-VC enhances the coating's surface density, uniformity, and overall strength, yielding the highest measured microhardness (887.1 HV).
- The Ni-W-B/P-VC coating demonstrates superior wear resistance and corrosion resistance, with the lowest friction coefficient (0.274) and corrosion rate (0.0456 mm/y), outperforming both Ni-W-B and VC coatings.
Article Abstract
In this study, vanadium carbide (VC) was used as the raw material to synthesize PDA-functionalized VC (P-VC). VC and P-VC were added as nanoreinforced materials to the Ni-W-B coating. The effects of the two nanomaterials on the morphology, wear resistance, and corrosion resistance of the Ni-W-B coatings were investigated and compared. The experimental results show that the surface of the Ni-W-B/P-VC coating is denser and more uniform than that of the Ni-W-B and Ni-W-B/VC coatings, and there are no obvious defects on the surface. According to the hardness test, the Ni-W-B/P-VC coating reaches the highest microhardness of 887.1 HV. According to the friction and wear tests, the Ni-W-B/P-VC coating has the shallowest scratches, the lowest average friction coefficient (COF = 0.274), and the lowest wear rate (9.578 × 10 mm/N). The corrosion resistance is the best, the corrosion rate is 0.0456 mm/y, and the impedance value R reaches 14,501 Ω·cm.
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| http://dx.doi.org/10.1021/acs.langmuir.4c01054 | DOI Listing |
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