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Документ Features of surface modification of copper-based alloys under powerful plasma exposures(Kharkiv Institute of Physics and Technology, 2018) Byrka, O. V.; Aksenov, N. N.; Chunadra, A.; Fomina, L.; Herashchenko, S. S.; Makhlai, V. A.; Malykhin, S. V.; Sereda, K.; Surovitskiy, S. V.; Garkusha, I. E.Paper presents features of plasma alloying of Cu-based materials with Ti-Cr, Ti-Cr-Ti-Nb, Ti-Cr-Ti-Zr, Ti-Cr-Ti-ZrO coatings in different regimes of the QSPA Kh-50. Targets were made from copper samples covered of multilayer PVD coatings have been deposited within a Bulat-type facility. Prepared targets were irradiated with powerful plasma streams with energy loads achieved 0.6 MJ/m² and the pulse duration of 0.25 ms. Influence of plasma impacts on modification different copper alloys has been analyzed. Mechanisms of modification of thin multilayered coatings mixed with Сu substrate in a liquid phase under the plasma processing are evaluated.Документ Features of surface modification of copper-based alloys under powerful plasma exposures(Національний науковий центр "Харківський фізико-технічний інститут", 2018) Byrka, O. V.; Aksenov, N. N.; Chunadra, A.; Herashchenko, S. S.; Makhlai, V. A.; Malykhin, S. V.; Sereda, K.; Surovitskiy, S. V.; Garkusha, I. E.Документ Materials in conditions of high power plasma loads: surface damage and modification(Taras Shevchenko National University of Kyiv, 2018) Makhlai, V. A.; Aksenov, N. N.; Byrka, O. V.; Garkusha, I. E.; Chunadra, A. G.; Herashchenko, S. S.; Malykhin, S. V.; Sereda, K.; Surovitskiy, S. V.The paper discusses main features of material response to the repetitive powerful plasma impacts caused either the damage mechanisms and erosion behaviour or modification of surface layer and alloying with plasma species, aimed at improvement of material performance. Influence of powerful plasma impacts on several materials used for the construction of energy systems, i.e. steels as well as tungsten coatings, and pure tungsten has been discussed.