Publication de 4 numéros par an
ISSN Imprimer: 1093-3611
ISSN En ligne: 1940-4360
Indexed in
FORMATION OF HARD AND WEAR-RESISTANT NIOBIUM CARBIDE COATINGS ON HARD-ALLOY TOOLS BY A VACUUM–ARC METHOD
RÉSUMÉ
The temperature fields of a hard-alloy tool surface during niobium ion impact were determined by thermography. The temperature of the surface layers reaches a maximum value of 1100–1250°C after exposure of 40 s to Nb ion, and it does not change with increase in the exposure time to 1 min. Ion exposure for 1 min leads to the formation of a carbide layer (Nb, W)C0.7, in the surface layer with a thickness of about 0.4 μm. Subsequent plasma deposition of Nb in methane atmosphere forms an NbC coating. The hardness of the formed niobium-based and tungsten carbide-based layers reaches 35–65 GPa. Adhesive resistance to cracking and destruction of NbC coatings with a sublayer of (Nb, W)C0.7 increases at least 2 times compared to an NbC coating.
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Anishchik, V.M., Kuleshov, A.K., Uglov, V.V., Rusalsky, D.P., and Syshchenko, A.F., Determination of Adhesion Strength of Mo-Ti-N and Mo-Cu-N Coatings Using the Skretch-Tester, Pribory Metody Izmer., vol. 10, no. 1, pp. 81-86, 2015 (in Russian).
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Bouzakis, K., Michailidis, N., Skordarisa, G., Bouzakis, E., Biermann, D., and M'Saoubi, Cutting with Coated Tools: Coating Technologies, Characterization Methods and Performance Optimization, CIRP Annals, Manufact. Technol., vol. 61, pp. 703-723, 2012.
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Firago, V. and Wojcik, W., High-Temperature Three-Color Thermal Imager, Przeglqd Elektrotechniczny, vol. 91, no. 2, pp. 208-214, 2015.
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Firago, V., Wojcik, W., and Volkova, I., The Principles of Reducing Temperature Measurement Uncertainty of Modern Thermal Imaging System, Przeglqd Elektrotechniczny, vol. 92, no. 8, pp. 117-120, 2016.
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Kuleshov, A.K., Uglov, V.V., Anishchik, V.M., and Rusalsky, D.P., Formation of Hard and Wear-Resistant Nb-C, NbC-Cu Coatings on Wood-Cutting Tool by Cathode Arc Plasma Deposition, in Advanced Methods and Technologies of Materials Development and Processing. Collection of Scientific Papers, A.V. Byeli, Ed., Minsk: PTI NAS of Belarus, vol. 2, pp. 141-151, 2017 (in Russian).
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Kurlov, A.S. and Gusev, A.I., Accounting for Nonstoichiometry of Niobium Carbide NbCy upon Milling to a Nanocrystalline State, Phys. Solid State, vol. 55, no. 12, pp. 2398-2405, 2013.
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Mesquita, R.A. and Schuh, Ch.A., Tool Steel Coatings Based on Niobium Carbide and Carbonitride Compounds, Surface Coat. Technol., vol. 285, pp. 31-46, 2016.
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Tkadletz, M., Schalk, N., Daniel, R., Keckes, J., Czettl, C., and Mitterer, C., Advanced Characterization Methods for Wear-Resistant Hard Coatings: A Review on Recent Progress, Surface Coat. Technol., vol. 285, pp. 31-46, 2016.
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Kuleshov A.K., Uglov V.V., Rusalsky D.P., Hard and wear-resistant niobium, molybdenum carbide layered coatings on WC-Co tools produced by ion bombardment and cathodic vacuum arc deposition, Surface and Coatings Technology, 395, 2020. Crossref