Effect of Severe Plastic Deformation on the Conductivity and Strength of Copper-Clad Aluminium Conductors
Aluminium rods with different copper sheath thicknesses were processed by severe plastic deformation at room temperature and then annealed, to join the constituent metals and produce a nanocrystalline microstructure. A study of the effects of the deformation parameters, copper cladding thickness and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-09-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/9/9/960 |
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| author | Rimma Lapovok Michael Dubrovsky Anna Kosinova Georgy Raab |
| author_facet | Rimma Lapovok Michael Dubrovsky Anna Kosinova Georgy Raab |
| author_sort | Rimma Lapovok |
| collection | DOAJ |
| description | Aluminium rods with different copper sheath thicknesses were processed by severe plastic deformation at room temperature and then annealed, to join the constituent metals and produce a nanocrystalline microstructure. A study of the effects of the deformation parameters, copper cladding thickness and annealing temperature on the electrical conductivity and hardness of the conductors is reported. It is shown that an interface forms between constituents because of intermixing in the course of severe shear deformation under high hydrostatic pressure and diffusion during the subsequent annealing. The effective conductivity of the aluminium copper-clad conductor dropped after deformation, but was recovered during annealing, especially during short annealing at 200 °C, to a level exceeding the theoretically predicted one. In addition, the annealing resulted in increased hardness at the interface and copper sheath. |
| first_indexed | 2024-12-12T15:34:45Z |
| format | Article |
| id | doaj.art-dd65548c09eb44648c96f82cde4250ae |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-12T15:34:45Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-dd65548c09eb44648c96f82cde4250ae2022-12-22T00:20:02ZengMDPI AGMetals2075-47012019-09-019996010.3390/met9090960met9090960Effect of Severe Plastic Deformation on the Conductivity and Strength of Copper-Clad Aluminium ConductorsRimma Lapovok0Michael Dubrovsky1Anna Kosinova2Georgy Raab3Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa 3200003, IsraelDepartment of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa 3200003, IsraelDepartment of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa 3200003, IsraelInstitute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa 450000, RussiaAluminium rods with different copper sheath thicknesses were processed by severe plastic deformation at room temperature and then annealed, to join the constituent metals and produce a nanocrystalline microstructure. A study of the effects of the deformation parameters, copper cladding thickness and annealing temperature on the electrical conductivity and hardness of the conductors is reported. It is shown that an interface forms between constituents because of intermixing in the course of severe shear deformation under high hydrostatic pressure and diffusion during the subsequent annealing. The effective conductivity of the aluminium copper-clad conductor dropped after deformation, but was recovered during annealing, especially during short annealing at 200 °C, to a level exceeding the theoretically predicted one. In addition, the annealing resulted in increased hardness at the interface and copper sheath.https://www.mdpi.com/2075-4701/9/9/960aluminium copper-clad rodhardnesseffective electrical conductivitysevere plastic deformation |
| spellingShingle | Rimma Lapovok Michael Dubrovsky Anna Kosinova Georgy Raab Effect of Severe Plastic Deformation on the Conductivity and Strength of Copper-Clad Aluminium Conductors Metals aluminium copper-clad rod hardness effective electrical conductivity severe plastic deformation |
| title | Effect of Severe Plastic Deformation on the Conductivity and Strength of Copper-Clad Aluminium Conductors |
| title_full | Effect of Severe Plastic Deformation on the Conductivity and Strength of Copper-Clad Aluminium Conductors |
| title_fullStr | Effect of Severe Plastic Deformation on the Conductivity and Strength of Copper-Clad Aluminium Conductors |
| title_full_unstemmed | Effect of Severe Plastic Deformation on the Conductivity and Strength of Copper-Clad Aluminium Conductors |
| title_short | Effect of Severe Plastic Deformation on the Conductivity and Strength of Copper-Clad Aluminium Conductors |
| title_sort | effect of severe plastic deformation on the conductivity and strength of copper clad aluminium conductors |
| topic | aluminium copper-clad rod hardness effective electrical conductivity severe plastic deformation |
| url | https://www.mdpi.com/2075-4701/9/9/960 |
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