Characteristics of ZrC/Ni-UDD coatings for a tungsten carbide cutting tool
| Autor: | V.V. Zhylinski, Olegas Černašėjus, D.P. Rusalsky, Pavel Rudak, Nikolaj Višniakov, Vadzim Chayeuski |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Cutting tool General Physics and Astronomy 02 engineering and technology Surfaces and Interfaces General Chemistry engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Surfaces Coatings and Films Zirconium carbide chemistry.chemical_compound 020303 mechanical engineering & transports 0203 mechanical engineering chemistry Coating Tungsten carbide Physical vapor deposition engineering Composite material 0210 nano-technology Electroplating Layer (electronics) |
| Zdroj: | Applied Surface Science. 446:18-26 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2018.02.239 |
| Popis: | This work deals with the features of the structure of combined ZrC/Ni-ultradisperse diamonds (UDD) coating synthesized by electroplating and cathode arc evaporation physical vapor deposition (CAE-PVD) techniques on the tungsten carbide WC – 2 wt% Co on cutting inserts to improve tool life. The microstructure, phase composition, and micro-scratch test analysis of the ZrC/Ni-UDD coating were studied. The ZrC/Ni-UDD coating consists of separate phases of zirconium carbide ZrC, α-Ni, and Ni-UDD phase. The surface morphology of the coating shows a pattern with pits, pores, and particles. Separated nanodiamond particles are present in the pores of the combined coating. Therefore, the structure of the bottom layer of Ni-UDD affects the morphology of the surface of the ZrC/Ni-UDD coating. The obtained value of the critical loads on the scratch track of the coating in 26 N proves a sufficiently high value of the adhesion strength of the intermediate Ni-UDD-layer with hard alloy of WC-Co substrate. Due to their unique structure ZrC/Ni-UDD-coatings can be used to increase the durability period of a wood-cutting milling tool for cutting chipboard by CNC machines. |
| Databáze: | OpenAIRE |
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