The Influence of the Surface Layer on the Combination of Properties of Thin TiNi Alloy Wires
- Authors: Gyunter V.E.1, Marchenko E.S.1, Gyunter S.V.1, Baigonakova G.A.1
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Affiliations:
- Tomsk State University
- Issue: Vol 44, No 9 (2018)
- Pages: 811-813
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/207903
- DOI: https://doi.org/10.1134/S1063785018090195
- ID: 207903
Cite item
Abstract
We have studied the influence of the surface layer on the parameters of the multiply repeated shape memory effect, developing stresses, characteristic temperatures, and intervals of martensitic transformations in thin (1 mm diameter) wires made of TiNi-based alloys. Examination of the surface layer structure showed that, in 1-mm-diameter TN-1V grade alloy wire, the oxide layer is about 15 μm thick and consists mostly of titanium, nickel, oxygen, and carbon. Removal of this surface layer leads to an increase in the maximum accumulated deformation, shift of the temperature interval of formation toward higher temperatures, and increase in the strength and plasticity characteristics.
About the authors
V. E. Gyunter
Tomsk State University
Email: marchenko84@vtomske.ru
Russian Federation, Tomsk, 634045
E. S. Marchenko
Tomsk State University
Author for correspondence.
Email: marchenko84@vtomske.ru
Russian Federation, Tomsk, 634045
S. V. Gyunter
Tomsk State University
Email: marchenko84@vtomske.ru
Russian Federation, Tomsk, 634045
G. A. Baigonakova
Tomsk State University
Email: marchenko84@vtomske.ru
Russian Federation, Tomsk, 634045