Deformation of the Shape Memory and Surface Microrelief of Ni–Fe–Ga–Co and Cu–Al–Ni Alloy Single Crystals
- Autores: Nosov Y.G.1, Soldatov A.V.1, Krymov V.M.1, Pul’nev S.A.1, Nikolaev V.I.1,2
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Afiliações:
- Ioffe Physical Technical Institute
- St. Petersburg National Research University of Information Technologies, Mechanics, and Optics (ITMO University)
- Edição: Volume 45, Nº 3 (2019)
- Páginas: 211-213
- Seção: Article
- URL: https://journal-vniispk.ru/1063-7850/article/view/208236
- DOI: https://doi.org/10.1134/S1063785019030118
- ID: 208236
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Resumo
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.
Sobre autores
Yu. Nosov
Ioffe Physical Technical Institute
Autor responsável pela correspondência
Email: Yu.nosov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
A. Soldatov
Ioffe Physical Technical Institute
Email: Yu.nosov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
V. Krymov
Ioffe Physical Technical Institute
Email: Yu.nosov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
S. Pul’nev
Ioffe Physical Technical Institute
Email: Yu.nosov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
V. Nikolaev
Ioffe Physical Technical Institute; St. Petersburg National Research University of Information Technologies, Mechanics, and Optics (ITMO University)
Email: Yu.nosov@mail.ioffe.ru
Rússia, St. Petersburg, 194021; St. Petersburg, 197101
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