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Information × Registration Number 0220U000098, 0115U005047 , R & D reports Title The formation mechanisms, thermal stability and physical properties of nanoscale structural states in aluminum based alloys popup.stage_title Head Nosenko Viktor, Registration Date 14-01-2020 Organization Institute of Metal Physic G.V.Kurdyumov NAS of the Ukraine popup.description2 The influence of chemical composition of alloys and quenching conditions on their tendency to amorphization, phase composition and structure of rapidly cooled samples have been investigated; regularities of the influence of the concentration of alloying transition elements on the structural features of alloys of the system Al75-87 (Ni, Co, B / Ga) 8-20Gd1Y4, obtained by the method of ultrafast quenching from the liquid state, have been established. For the new alloys of Al81TM14REM5 system, regularities of influence of chemical composition of alloys with initial amorphous and amorphous-nanocrystalline structure on the thermal stability of their nanophase structure obtained by annealing in the vicinity of eutectic crystallization temperatures have been established. It is established that for the original amorphous Al87-81 (Ni, Co) 8-14 (Gd, Y) 5 alloys with increasing Ni content from 8 to 14 at.% The mechanism of their complete crystallization changes from three-stage to two-stage, and thermal stability increases from 463 to 587 K. Generalized results will be obtained, which will allow to find qualitatively new possibilities of controlled influence on the formation of nanocomposite structures in amorphous Al87-66TM6-20REM1-8X0-6 alloys, to establish optimal ratios of amorphous and nanocrystalline components, which will provide a comparison of the properties of a number of new properties with industrial heat-resistant structural light alloys. Methods of producing amorphous-nanocrystalline composites of Al87-66TM6-20REM1-8X0-6 alloys in the form of rods and plates with thickness from 0.5 mm to 3.0 mm have been worked out. It has been shown for the first time that bulk samples with nanocomposite structure can be obtained using not only the known methods of intensive plastic deformation, but also in the process of cold gas-dynamic deposition of metal-matrix composites (MMC). The developed alloys of system Al81-75 (Ni, Co) 14-20Gd1Y4 enable their industrial testing in additive technologies of manufacturing parts of automotive and aviation design structures in the form of bulk workpieces and dense wear-resistant coatings with significantly increased level of physical and mechanical properties (in particular, performance at temperatures up to 673 K) and high resistance to corrosion processes in corrosive environments compared to industrial heat-resistant structural light alloys. Product Description popup.authors Є. Живолуб І. Євлаш І. Загорулько А. Носенко В. Балан В. Кирильчук В. Коробко В. Машира Г. Зелінська Л. Губіч М. Нізамеєв О. Бошко О. Семирга Р. Мишко Т. Ієвлєва Т. Міка Федоров О.П. popup.nrat_date 2020-04-02 Close