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2013 | 123 | 5 | 813-815
Article title

Formation of Multilayered Ti-Hf-Si-N/NbN/Al_2O_3 Coatings with High Physical and Mechanical Properties

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EN
Abstracts
EN
This work presents the first results on forming of multi-layered superhard coatings Ti-Hf-Si-N/NbN/Al_2O_3 and their properties as well as structure. Microstructure, elemental and phase compositions of multi-layered coatings obtained by different methods were investigated. There were used such methods as: scanning electron microscopy EDS JEM-7000F microscope (with microanalysis) for research of cross-section of coatings, with subsequent Auger-electron spectroscopy, X-ray diffraction analysis, optical inverted microscope Olympus GX51, electron-ion microscopes Quanta 200 3D and Quanta 600 (scanning electron microscopy), equipped by the detector of X-ray radiation of the system PEGASUS 2000. It was stated that hardness of coatings has reached 56 GPa, and at the same time the factor of wearing during friction was the smallest - 2.571×10^{-5}. It was also noted that nitrogen pressure in the chamber at the deposition of the top layer significantly influences on the properties of samples. For example, the coefficient of friction at P=0.3 Pa from 0.2 at the beginning of track to 0.001 (during the tests), and at the pressure of nitrogen P=0.8 Pa, the coefficient of friction was equal to 0.314 at the beginning of track and 0.384 at the end (during the tests).
Keywords
EN
Contributors
author
  • Sumy State University, R. Korsakov 2, 40007 Sumy, Ukraine
author
  • Belgorod State University, Belgorod, Russia
author
  • Belgorod State University, Belgorod, Russia
  • Paton Welding Institute NAS of Ukraine, Kiev, Ukraine
author
  • National Kharkov University, Kharkov, Ukraine
author
  • National Institute for Material Science, Tsukuba, Japan
author
  • National Institute for Material Science, Tsukuba, Japan
author
  • Sumy State University, R. Korsakov 2, 40007 Sumy, Ukraine
author
  • Sumy State University, R. Korsakov 2, 40007 Sumy, Ukraine
author
  • Lublin University of Technology, Nadbystrzycka 38a, 20-618 Lublin, Poland
References
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  • 7. A.D. Pogrebnjak, A.G. Ponomarev, D.A. Kolesnikov, V.M. Beresnev, F.F. Komarov, M.V. Kaverin, S.S. Melnik, Tech. Phys. Lett. 38, 623 (2012)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv123n505kz
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