| Autor: |
Girsova, S. L., Poletika, T. M., Girsova, N. V., Panin, Victor E, Fomin, Vasily M |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2310 Issue 1, p1-4, 4p |
| Abstrakt: |
The structure of a nanocrystalline Ti-50.9 at % Ni alloy with mixed subgrain/nanograin structure is investigated by transmission electron microscopy after annealing at temperature 400°C. The morphology and the localization features of the T3Ni4 precipitation and R-phase formed due to the B2 ↔ R martensitic transformation are investigated. It is shown that the Ti3Ni4 particles precipitate in the substructure in the low-angle boundaries regions. The initial non-uniform nanostructure of the NC TiNi alloy assumes an inhomogeneous distribution of Ti3Ni4 precipitates in the grain/subgrain structure. It is assumed that the heterogeneity of the Ti3Ni4 particles distribution in the bulk of the material is one of the reasons for the realization of the multi-stage martensitic transformations B2 ↔ R ↔ B19'. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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