The Effect of Cooling Rate on Crystallographic Features of Phase Transformations in Zr-2.5Nb
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
The Effect of Cooling Rate on Crystallographic Features of Phase Transformations in Zr-2.5Nb
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| Автор |
Lobanov, M. L.
Yarkov, V. Y. Pastukhov, V. I. Naschetnikova, I. A. Stepanov, S. I. Redikultsev, A. A. Zorina, M. A. |
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| Тематика |
BURGERS RELATIONSHIP
HEXAGONAL CLOSE-PACKED STRUCTURE MISORIENTATION ANALYSIS TWIN ZIRCONIUM BINARY ALLOYS COOLING CORROSION RESISTANCE CORROSION RESISTANT ALLOYS NEUTRON IRRADIATION NIOBIUM ALLOYS NUCLEAR REACTORS ZIRCALOY BURGER RELATIONSHIP BURGERS ORIENTATION RELATIONSHIPS COOLING RATES FURNACE COOLING HEXAGONAL CLOSEST PACKED STRUCTURES MISORIENTATION ANALYSE MISORIENTATIONS PHASES TRANSFORMATION TWIN WATER QUENCHING MICROSTRUCTURE |
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| Описание |
Zirconium (Zr) alloys are utilized as structural components for the cores of nuclear reactors due to the excellent combination of their mechanical properties and corrosion resistance under intense neutron irradiation conditions in water. The characteristics of microstructures formed during heat treatments play a crucial role in obtaining the operational performance of parts made from Zr alloys. This study investigates the morphological features of (α + β)-microstructures in the Zr-2.5Nb alloy, as well as the crystallographic relationships between α- and β-phases. These relationships are induced by the β→α(α″) displacive transformation that occurs during water quenching (WQ) and the diffusion-eutectoid transformation that takes place during furnace cooling (FC). To conduct this analysis, samples solution treated at 920 °C were examined using EBSD and TEM. The experimental distribution of α/β-misorientations for both cooling regimes deviates from the Burgers orientation relationship (BOR) at a discrete set of angles close to 0, 29, 35, and 43°. The experimental α/β-misorientation spectra are confirmed by crystallographic calculations for the β→α→β-transformation path based on the BOR. Similar spectra of misorientation angle distribution in α-phase and between α and β phases in Zr-2.5Nb after WQ and FC point to similar transformation mechanisms and the significant role of shear and shuffle in β→α-transformation. © 2023 by the authors.
Ministry of Education and Science of the Russian Federation, Minobrnauka This research was funded by the Ministry of Science and Higher Education of the Russian Federation (Ural Federal University Program of Development within the Priority-2030 Program). |
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| Дата |
2024-04-05T16:22:59Z
2024-04-05T16:22:59Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Lobanov, ML, Yarkov, VY, Pastukhov, VI, Naschetnikova, IA, Stepanov, SI, Redikultsev, AA & Zorina, MA 2023, 'The Effect of Cooling Rate on Crystallographic Features of Phase Transformations in Zr-2.5Nb', Materials, Том. 16, № 10, 3758. https://doi.org/10.3390/ma16103758
Lobanov, M. L., Yarkov, V. Y., Pastukhov, V. I., Naschetnikova, I. A., Stepanov, S. I., Redikultsev, A. A., & Zorina, M. A. (2023). The Effect of Cooling Rate on Crystallographic Features of Phase Transformations in Zr-2.5Nb. Materials, 16(10), [3758]. https://doi.org/10.3390/ma16103758 1996-1944 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160332351&doi=10.3390%2fma16103758&partnerID=40&md5=ebd9e4b1368f257bd6ba1efd6a21b382 https://www.mdpi.com/1996-1944/16/10/3758/pdf?version=1684220150 http://elar.urfu.ru/handle/10995/130510 10.3390/ma16103758 85160332351 000997327400001 |
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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 |
Materials
Materials |
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