| Autor: |
Irina Volokitina, Bayan Sapargaliyeva, Aktolkyn Agabekova, Andrey Volokitin, Samal Syrlybekkyzy, Alexandr Kolesnikov, Gulnara Ulyeva, Almas Yerzhanov, Pavel Kozlov |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Case Studies in Construction Materials, Vol 18, Iss , Pp e02162- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2214-5095 |
| DOI: |
10.1016/j.cscm.2023.e02162 |
| Popis: |
This article investigates the effect of a new processing technology on the change in microstructure and mechanical properties of bimetallic aluminum-copper wire. This technology makes it possible to produce a new generation of wire for use in the construction of new overhead lines and reconstruction of old ones. The study was conducted using a transmission electron microscope, EBSD analysis, tensile tests, and determination of microhardness and electrical conductivity. The results of the study show that an ultrafine-grained copper-aluminum composite with a gradient structure is formed during straining by ECAP-drawing. Annealing after straining at 200 °C increases the strength of the interfacial connection between Cu and Al and improves the strength characteristics of the bimetallic aluminum-copper wire. The use of such aluminum-copper wires for overhead transmission lines allows to reduce the wire cross-section and, accordingly, wind loads, as well as to increase the strength properties without an additional increase in the total weight of the wire. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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