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Заглавие документа: | Nuclear physics study of the composition of surface layers of rapidly solidified foils of Al–Mg–Li–Sc–Zr alloy after heat treatment |
Авторы: | Stoliar, I. A. Shepelevich, V. G. Tashlykova-Bushkevich, I. I. Wendler, E. |
Тема: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика |
Дата публикации: | 2023 |
Издатель: | Springer |
Библиографическое описание источника: | Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques.– 2023. – Vol. 17, No. 1. – P. 191–199. |
Аннотация: | The influence of heat treatment on the distribution of lithium over the depth of surface layers is studied for rapidly solidified foils of industrial Al–Mg–Li–Sc–Zr alloy (1421) produced by ultra-rapid quenching from the molten state using unilateral cooling on the internal surface of a rotating copper drum. It is found by electron backscatter diffraction that the as-cast foils had a micrograin structure with an average grain size of 12 μm and the [111] texture. Using atomic-force microscopy, it is determined that the air-side surface is characterized by a fine cellular structure, which is also observed in the area of caverns and cavities on the drum-side surface. The surface roughness of the foils is from 44 to 57 nm. The patterns of the lithium depth distribution in the annealed samples are established by nuclear-reaction analysis using a protoninduced reaction (p, α). It is found that during low-temperature annealing, the surface and deep layers of the samples are depleted of lithium, which is evenly distributed over the foil depth. A multiple increase in the lithium concentration found in the surface region of the foils is established during high-temperature annealing, resulting in the formation of a composition-gradient foil structure. The effect of the structure and phase changes caused by the decomposition of a supersaturated solid solution with the precipitation of lithium-containing phases on the behavior of lithium in the annealing temperature range 150–380°C is discussed. |
URI документа: | https://elib.bsu.by/handle/123456789/307212 |
DOI документа: | 10.1134/S1027451023010408 |
Лицензия: | info:eu-repo/semantics/restrictedAccess |
Располагается в коллекциях: | Кафедра физики твердого тела и нанотехнологий (статьи) |
Полный текст документа:
Файл | Описание | Размер | Формат | |
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2023-Al1421.pdf | 521,62 kB | Adobe PDF | Открыть |
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