Registration Number
0218U002512,
0113U000031
, R & D reports
Title
Influence of melt solidification conditions on processes of nucleation and growth of crystals and formation of nanostructural states in amorphous alloys based on iron and aluminum
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Head
Nosenko Viktor Kostjantynovych,
Registration Date
02-04-2018
Organization
Institute of Metal Physic G.V.Kurdyumov NAS of the Ukraine
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The basic possibility of changing the atomic structure of the melt through its heat treatment and its inheritance during amorphization is confirmed. Important practical consequences of these results are the possible increase in the inclination of melts to amorphization (obtaining more massive amorphous materials), as well as in improving the complex of properties of amorphous and nanocrystalline rapidly-quenched alloys. The influence of the melt mixing and vibration convection on the regularity of the loss of stability of the flat crystallization front and the development of the unstable collapsible front of crystallization of bulky transparent metal-like substances was established. New fundamental ideas about the regularities of the formation of nanoscale inhomogeneities in metal melts and amorphous phases of alloys on the basis of aluminum and iron, their evolution in the process of thermo-time processing of melts and solidification at cooling with different velocities, as well as the formation of nanocrystalline phases in amorphous alloys in the process of thermal treatments are obtained. The regularities and mechanisms of nanocrystallization during thermal treatment of three-dimensional amorphous alloys of different chemical compositions were established, the similarities and differences from the process of nanocrystallization of amorphous strips obtained from the same alloys (the same chemical composition) were determined. A number of results, which have both purely scientific and applied significance, open qualitatively new prospects for the creation of new effective nanophase composites and technologies for their obtaining.
Product Description
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Є. Живолуб
І. Євлаш
А. Носенко
Брехаря Г.П.
В. Балан
В. Кирильчук
В. Машира
Г. Зелінська
Г.Чемеринський
М. Нізамеєв
О. Ільченко
О. Бошко
О. Руденко
О. Слуховський
Р. Мишко
Семирга О.М.
Т. Ієвлєва
Т. Міка
Федоров О.П.
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2020-04-02
