Deformation of the Shape Memory and Surface Microrelief of Ni–Fe–Ga–Co and Cu–Al–Ni Alloy Single Crystals
| Autor: | Yu. G. Nosov, S. A. Pul’nev, V. M. Krymov, V. I. Nikolaev, A. V. Soldatov |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Surface (mathematics) Materials science Physics and Astronomy (miscellaneous) Alloy 02 engineering and technology Shape-memory alloy engineering.material Deformation (meteorology) 021001 nanoscience & nanotechnology Compression (physics) 01 natural sciences Crystal 0103 physical sciences engineering Composite material 0210 nano-technology Arithmetic mean |
| Zdroj: | Technical Physics Letters. 45:211-213 |
| ISSN: | 1090-6533 1063-7850 |
| DOI: | 10.1134/s1063785019030118 |
| Popis: | We present the results of experimental studies of the return of Ni–Fe–Ga–Co and Cu–Al–Ni single crystals to the initial form at the macro- and microlevels after their deformation by compression and subsequent restorative heating. It is found that the geometric dimensions of the sample are reproduced with high accuracy (up to 20 μm). The microrelief appearing on the initially polished surface during crystal compression (the arithmetic mean profile deviation Ra ≈ 0.25–0.75 μm, the average spacing of local protrusions of the profile S ≈ 0.027–0.11 mm) is not removed by subsequent heating and remains with further multiple repetition of deformation–restoration cycles. |
| Databáze: | OpenAIRE |
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