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Tribological characteristics of (TiZrHfVNbTa)N coatings applied using the vacuum arc deposition method |
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| Authors: | S N Grigoriev O V Sobol V M Beresnev I V Serdyuk A D Pogrebnyak D A Kolesnikov U S Nemchenko |
| Affiliation: | 1. Moscow State University of Technology STANKIN, Vadkovskii per. 1, Moscow, 127994, Russia 2. Khar’kovsii Polytechnic Institute National Technical University, ul. Frunze 21, Khar’kov, 61002, Ukraine 3. Karazin Khar’kov National University, pl. Svobody 4, Khar’kov, 61022, Ukraine 4. National Science Center Kharkov Institute of Physics and Technology, ul. Akademicheskaya 1, Khar’kov, 61108, Ukraine 5. Sumi State University, ul. Rimskkogo-Korsakova 2, Sumi, 40007, Ukraine 6. Belgorod National Research University, ul. Koroleva 2a, Belgorod, 308015, Russia |
| Abstract: | The effect of the pressure of the nitrogen atmosphere during the formation of vacuum arc nitride coatings based on high entropy alloys of the Ti-Zr-Hf-V-Nb-Ta system on their structure, hardness, and tribotechnical characteristics is considered. It is shown that strong nitride-forming components lead to the dependence of the structural state and properties on the pressure of the nitrogen atmosphere during coating deposition. Deposition at a nitrogen pressure of 0.4 Pa results in the formation of a texture with the 111] axis when the applied bias potential is ?70 V and when the bias potential is equal to ?150 V the textural structure is biaxial (111] and 110]) textures and high value of hardness of 51 GPa Along with that the highest value of wear resistance (under oxidizing-mechanical wear) is inherent to coatings formed under the pressure of nitrogen of 0.09 Pa. The strongest microdeformation of coating crystallites corresponds to this pressure. |
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