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http://elar.urfu.ru/handle/10995/101805
Название: | Diffusionless (chemically partitionless) crystallization and subsequent decomposition of supersaturated solid solutions in Sn-Bi eutectic alloy |
Авторы: | Gusakov, O. V. Galenko, P. K. Shepelevich, V. G. Alexandrov, D. V. Rettenmayr, M. |
Дата публикации: | 2019 |
Издатель: | Royal Society Publishing |
Библиографическое описание: | Diffusionless (chemically partitionless) crystallization and subsequent decomposition of supersaturated solid solutions in Sn-Bi eutectic alloy / O. V. Gusakov, P. K. Galenko, V. G. Shepelevich, et al. — DOI 10.1098/rsta.2018.0204 // Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. — 2019. — Vol. 377. — Iss. 2143. — 20180204. |
Аннотация: | Results of a study on microstructural evolution of eutectic Sn-57wt.% Bi processed with cooling rates of 10-2, 1Ks-1 and approximately 105 Ks-1 are presented. In order to distinguish different mechanisms of microstructure formation, a comparison with microstructures of different hypoeutectic alloys with compositions down to below the maximum solubility of Bi in Sn-Bi is undertaken. It is found that at the cooling rates of 10-2 and 1Ks-1, coupled eutectic growth occurs, leading to lamellar structures with different length scales. At the rapid quenching rates of approximately 105 Ks-1, structure formation in the eutectic alloy is qualitatively different. Partitionless solidification resulting in a supersaturated solid solution with the initial composition is observed in both eutectic and hypoeutectic alloys. It is shown that the observed microstructure of the rapidly solidified alloys forms by the decomposition of the supersaturated solid solution. This article is part of the theme issue 'Heterogeneous materials: Metastable and non-ergodic internal structures'. ©2019 The Author(s) Published by the Royal Society. |
Ключевые слова: | DECOMPOSITION EUTECTIC STRUCTURE GRAIN BOUNDARY MIGRATION RAPID SOLIDIFICATION BINARY ALLOYS BISMUTH ALLOYS COOLING DECOMPOSITION EUTECTICS GRAIN BOUNDARIES LAMELLAR STRUCTURES RAPID SOLIDIFICATION SOLID SOLUTIONS TERNARY SYSTEMS DIFFERENT LENGTH SCALE DIFFERENT MECHANISMS EUTECTIC STRUCTURES GRAIN BOUNDARY MIGRATIONS HETEROGENEOUS MATERIALS MICROSTRUCTURE FORMATION STRUCTURE FORMATIONS SUPERSATURATED SOLID SOLUTIONS TIN ALLOYS |
URI: | http://elar.urfu.ru/handle/10995/101805 |
Условия доступа: | info:eu-repo/semantics/openAccess |
Идентификатор SCOPUS: | 85062388253 |
Идентификатор WOS: | 000465497000002 |
Идентификатор PURE: | 0146caca-a319-4a45-80b5-adc27954b754 9063894 |
ISSN: | 1364503X |
DOI: | 10.1098/rsta.2018.0204 |
Располагается в коллекциях: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
Файлы этого ресурса:
Файл | Описание | Размер | Формат | |
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2-s2.0-85062388253.pdf | 2,75 MB | Adobe PDF | Просмотреть/Открыть |
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