Microstructure of Joints Processed by Ultrasonic Consolidation of Nickel Sheets
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
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Microstructure of Joints Processed by Ultrasonic Consolidation of Nickel Sheets
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| Автор |
Shayakhmetova, E. R.
Murzinova, M. A. Zadorozhniy, V. S. Nazarov, A. A. |
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| Тематика |
MICROHARDNESS
MICROSTRUCTURE NICKEL ULTRASONIC CONSOLIDATION ULTRASONIC SPOT WELDING |
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| Описание |
Ultrasonic consolidation is an advanced process of sequential solid-state joining of metal foils or sheets by ultrasonic welding. This process was used for joining six sheets of nickel with a thickness of 0.2 mm. Ultrasonic consolidation was accompanied by the formation of wear particles between the sheets. The appearance of microbonds between the sheet surface and the wear particles led to the formation of parallel rows of voids and swirl-like patterns near the interfaces. It was shown that ultrasonic consolidation of nickel sheets led to the formation of fine recrystallized grains near contact surfaces and a subgrain structure in the bulk of the consolidated layers. The microstructural changes were accompanied by an increase in the microhardness of nickel from 1567 MPa in the initial sheet to 2065 and 2400 MPa, respectively, in the bulk and joint zones of the consolidated sample. However, significant differences in the microstructure and microhardness of the layers were not revealed, despite the fact that the accumulated plastic deformation and thermal effects were different from layer to layer. This unexpected result was explained by an inhomogeneity of the microstructure of the nickel samples obtained by ultrasonic consolidation and by a possible interplay between ultrasonic residual hardening and softening. © 2022 by the authors.
Ministry of Education and Science of the Russian Federation, Minobrnauka, (122011900468-4) The present work was accomplished in terms of the State Assignment of the Institute for Metals Superplasticity Problems of the Russian Academy of Sciences, financed by the Ministry of Science and Higher Education of the Russian Federation (Registration Number 122011900468-4). |
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| Дата |
2024-04-08T11:06:22Z
2024-04-08T11:06:22Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Shayakhmetova, ER, Murzinova, MA, Zadorozhniy, VS & Nazarov, AA 2022, 'Microstructure of Joints Processed by Ultrasonic Consolidation of Nickel Sheets', Metals, Том. 12, № 11, 1865. https://doi.org/10.3390/met12111865
Shayakhmetova, E. R., Murzinova, M. A., Zadorozhniy, V. S., & Nazarov, A. A. (2022). Microstructure of Joints Processed by Ultrasonic Consolidation of Nickel Sheets. Metals, 12(11), [1865]. https://doi.org/10.3390/met12111865 2075-4701 Final All Open Access; Gold Open Access https://www.mdpi.com/2075-4701/12/11/1865/pdf?version=1667373941 https://www.mdpi.com/2075-4701/12/11/1865/pdf?version=1667373941 http://elar.urfu.ru/handle/10995/131305 10.3390/met12111865 85141681221 000883932500001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
MDPI
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| Источник |
Metals
Metals |
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