Mechanical and Structural Characterization of Laser-Cladded Medium-Entropy FeNiCr-B4C Coatings
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Mechanical and Structural Characterization of Laser-Cladded Medium-Entropy FeNiCr-B4C Coatings
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| Автор |
Okulov, A.
Korobov, Y. Stepchenkov, A. Makarov, A. Iusupova, O. Korkh, Y. Kuznetsova, T. Kharanzhevskiy, E. Liu, K. |
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| Тематика |
B4C
BORON CARBIDE LASER CLADDING MEDIUM-ENTROPY ALLOY MICROHARDNESS MICROSTRUCTURE CHARACTERIZATION RAMAN SPECTROSCOPY AMORPHOUS CARBON BORON CARBIDE COATINGS ENTROPY HIGH-ENTROPY ALLOYS IRON ALLOYS LASER CLADDING MICROHARDNESS PULSED LASERS THICKNESS MEASUREMENT AISI 1040 STEEL COATING THICKNESS FACE-CENTRED CUBIC MECHANICAL CHARACTERIZATIONS MEDIUM ENTROPY MEDIUM-ENTROPY ALLOY MICROSTRUCTURAL ANALYSIS MICROSTRUCTURE CHARACTERIZATION STEEL SUBSTRATE STRUCTURAL CHARACTERIZATION RAMAN SPECTROSCOPY |
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| Описание |
Equiatomic medium-entropy alloy (MEA) FeNiCr-B4C (0, 1, and 3 wt.% B4C) coatings were deposited onto an AISI 1040 steel substrate using pulsed laser cladding. Based on an SEM microstructural analysis, it was found that the cross-sections of all the obtained specimens were characterized by an average coating thickness of 400 ± 20 μm, a sufficiently narrow (100 ± 20 μm) “coating–substrate” transition zone, and the presence of a small number of defects, including cracks and pores. An XRD analysis showed that the formed coatings consisted of a single face-centered cubic (FCC) γ-phase and the space group Fm-3m, regardless of the B4C content. However, additional TEM analysis of the FeNiCr coating with 3 wt.% B4C revealed a two-phase FCC structure consisting of grains (FCC-1 phase, Fm-3m) up to 1 µm in size and banded interlayers (FCC-2 phase, Fm-3m) between the grains. The grains were clean with a low density of dislocations. Raman spectroscopy confirmed the presence of B4C carbides inside the FeNiCr (1 and 3 wt.% B4C) coatings, as evidenced by detected peaks corresponding to amorphous carbon and peaks indicating the stretching of C-B-C chains. The mechanical characterization of the FeNiCr-B4C coatings specified that additions of 1 and 3 wt.% B4C resulted in a notable increase in microhardness of 16% and 38%, respectively, with a slight decrease in ductility of 4% and 10%, respectively, compared to the B4C-free FeNiCr coating. Thus, the B4C addition can be considered a promising method for strengthening laser-cladded MEA FeNiCr-B4C coatings. © 2023 by the authors.
National Natural Science Foundation of China, NSFC: 52105351; Ministry of Education and Science of the Russian Federation, Minobrnauka: 121102900049-1, 122021000033-2, 122021000036-3 This research was carried out within the state assignment of the Ministry of Science and Higher Education of the Russian Federation (themes “Additivity” No. 121102900049-1; “Structure” No. 122021000033-2; and “Spin” No. 122021000036-3) using the equipment of the Collaborative Access Center “Testing Center of Nanotechnology and Advanced Materials” of the IMP UB RAS, and supported by the National Natural Science Foundation of China (Grant No. 52105351). |
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| Дата |
2024-04-05T16:31:14Z
2024-04-05T16:31:14Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Okulov, A, Korobov, Y, Stepchenkov, A, Makarov, A, Iusupova, O, Korkh, Y, Kuznetsova, T, Kharanzhevskiy, E & Liu, K 2023, 'Mechanical and Structural Characterization of Laser-Cladded Medium-Entropy FeNiCr-B4C Coatings', Materials, Том. 16, № 15, стр. 5479. https://doi.org/10.3390/ma16155479
Okulov, A., Korobov, Y., Stepchenkov, A., Makarov, A., Iusupova, O., Korkh, Y., Kuznetsova, T., Kharanzhevskiy, E., & Liu, K. (2023). Mechanical and Structural Characterization of Laser-Cladded Medium-Entropy FeNiCr-B4C Coatings. Materials, 16(15), 5479. https://doi.org/10.3390/ma16155479 1996-1944 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85167815697&doi=10.3390%2fma16155479&partnerID=40&md5=b30409e096ab70bbebb580dfd5c53c44 https://www.mdpi.com/1996-1944/16/15/5479/pdf?version=1691160687 http://elar.urfu.ru/handle/10995/130713 10.3390/ma16155479 85167815697 001046319400001 |
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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 |
Multidisciplinary Digital Publishing Institute (MDPI)
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| Источник |
Materials
Materials |
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