Multicomponent (Ti-Zr-Hf-V-Nb)N nanostructure coatings fabrication, high hardness and wear resistance
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Multicomponent (Ti-Zr-Hf-V-Nb)N nanostructure coatings fabrication, high hardness and wear resistance
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| Creator |
Погребняк, Олександр Дмитрович
Погребняк, Александр Дмитриевич Pohrebniak, Oleksandr Dmytrovych Береснев, В.М. Beresnev, V.M. Колесников, Д.А. Kolesnikov, D.A. Бондар, Олександр В`ячеславович Бондарь, Александр Вячеславович Bondar, Oleksandr Viacheslavovych Takeda, Y. Oyoshi, K. Каверін, Михайло Валерійович Каверин, Михаил Валерьевич Kaverin, Mykhailo Valeriiovych Соболь, О.В. Sobol, O.V. Krause-Rehberg, R. Karwat, C. |
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| Subject |
multicomponent coatings
annealing |
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| Description |
First results in the field of synthesis and research of the multicomponent (Ti-Zr-Hf-V-Nb)N nanostructured coatings are presented in the paper. Influence of processes of spinodal segregation and mass-transfer on single--layered or multilayered crystal boundary (second phase) forming were explored. Superhard nanostructured coatings were investigated before and after annealing at the temperature 600 C using unique methods (slow positron beam, proton microbeam particle induced X-ray emission, Rutherford backscattering-analysis, scanning electron microscopy with energy dispersive X-ray spectroscopy, X-ray diffraction analysis was performed using DRON-4 and nanoindentor). Di raction spectra were taken point-by-point, with a scanning step 2 = 0.05 to 0.1. We detected that positron trapping by defects was observed on the nanograins boundaries and interfaces (vacancies and nanopores which are the part of triple and larger grain's boundary junction). The 3D distribution maps of elements obtained by the proton microbeam (particle induced X-ray emission- ) together with the results obtained by slow positron microbeam gave us comprehensive information about physical basis of the processes, connected with diffusion and spinodal segregation in superhard coatings. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/33937 |
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| Publisher |
Polish Academy of Sciences Institute of Physics
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| Date |
2014-02-12T08:34:34Z
2014-02-12T08:34:34Z 2013 |
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| Type |
Article
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| Identifier |
Multicomponent (Ti-Zr-Hf-V-Nb)N nanostructure coatings fabrication, high hardness and wear resistance [Текст] / O.D. Pohrebniak, V.M. Beresnev, D.A. Kolesnikov [et al.] // Acta Physica Polonica A. — 2013. — Vol. 123 №5. — P. 816-818
http://essuir.sumdu.edu.ua/handle/123456789/33937 |
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| Language |
en
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