Anisotropy of Structure and Strength Properties of High-Temperature Cu-Cr-Zr Composite, Induced by Equal-Channel Angular Pressing
| Authors | A.I. Belyaeva1, A.A. Galuza1,2, I.V. Kolenov2,3, S.N. Faizova4, G.I. Raab4, I.A. Faizov4 |
| Affiliations | 1 National Technical University «Kharkiv Politechnic Institute», 21, Kyrpychova st., 61002 Kharkiv, Ukraine 2 Institute of Electrophysics and Radiation Technologies of NAS of Ukraine, 13, Gudanova st., 61024 Kharkiv, Ukraine 3 O.Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, 12, Proscura st., 61085 Kharkiv, Ukraine 4 Institute of Physics of Advanced Materials at USATU, 450054 Ufa, Russia |
| Е-mail | aibelyaeva@mail.ru |
| Issue | Volume 8, Year 2016, Number 4 |
| Dates | Received 12 September 2016; revised manuscript received 19 December 2016; published online 23 December 2016 |
| Citation | A.I. Belyaeva, A.A. Galuza, I.V. Kolenov, et al., J. Nano- Electron. Phys. 8 No 4(2), 04082 (2016) |
| DOI | 10.21272/jnep.8(4(2)).04082 |
| PACS Number(s) | 81.40.Cd, 62.20.F – |
| Keywords | Cu-Cr-Zr composite, Equal-channel angular pressing, Ultra-fane grain, Anisotropy (3) , Microstructure (21) , Precipitates. |
| Annotation | In the paper influence of thermal treatment and equal-channel angular pressing (ECAP) on properties of high-temperature Cu-Cr-Zr composite is studied. It is shown, that proper combination of these two treatments leads to increase of the alloy microhardness while preserving high electroconductivity. It is proved experimentally, that structure formation of Cr-rich precipitates is not connected with the size of the matrix structural elements which is close to the size of the precipitates. High ECAP-induced anisotropy of both structure and spatial arrangement of Cr-rich fibers along and across the sample axis, and of the composite microhardness is revealed. It is shown, that ECAP results in anisotropic strengthening of the composite due to anisotropic distribution of Cr-rich precipitates. Conductivity remains rather high and isotropic since it is determined by the isotropic matrix properties. |
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