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Title Multicomponent (Ti-Zr-Hf-V-Nb)N nanostructure coatings fabrication, high hardness and wear resistance
Authors Pohrebniak, Oleksandr Dmytrovych  
Береснев, В.М.
Beresnev, V.M.
Колесников, Д.А.
Kolesnikov, D.A.
Bondar, Oleksandr Viacheslavovych  
Takeda, Y.
Oyoshi, K.
Kaverin, Mykhailo Valeriiovych
Соболь, О.В.
Sobol, O.V.
Krause-Rehberg, R.
Karwat, C.
ORCID http://orcid.org/0000-0002-9218-6492
http://orcid.org/0000-0003-3174-0709
Keywords multicomponent coatings
annealing
Type Article
Date of Issue 2013
URI http://essuir.sumdu.edu.ua/handle/123456789/33937
Publisher Polish Academy of Sciences Institute of Physics
License
Citation 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
Abstract 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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