Microstructure of Ti–5Al–4V–2Zr alloy in the initial condition and after irradiation with titanium ions
- Authors: Rogozhkin S.V.1,2, Nikitin A.A.1,2, Orlov N.N.1,2, Kulevoy T.V.1, Fedin P.A.1, Korchuganova O.A.1,2, Kozodaev M.A.1,2, Vasiliev A.L.3,4, Orekhov A.S.3,4, Kolobylina N.N.3, Leonov V.P.5, Schastlivaya I.A.5
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Affiliations:
- State Scientific Center of the Russian Federation
- National Research Nuclear University MEPhI
- National Research Center “Kurchatov Institute”
- A. V. Shubnikov Institute of Crystallography
- Central Research Institute of Structural Materials “Prometey”
- Issue: Vol 8, No 2 (2017)
- Pages: 279-285
- Section: Materials of Power Engineering and RadiationResistant Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/206335
- DOI: https://doi.org/10.1134/S2075113317020216
- ID: 206335
Cite item
Abstract
Chemical analysis of phases and inclusions in a specimen of Ti–5Al–4V–2Zr titanium alloy in the initial state and after irradiation with titanium ions up to the radiation damage dose of ~1 dpa at 260°C was carried out and the microstructure was studied. Microstructural analysis was performed by the methods of transmission electron microscopy, energy dispersion X-ray spectroscopy, and atom probe tomography. Results of the chemical analysis of the matrix α phase and inclusions of β phase grains are given. It is shown that the α phase is enriched in aluminum up to 10 at % and the β phase is enriched in vanadium up to 20 at % in the initial state in the Ti–5Al–4V–2Zr alloy. Heavy ion irradiation induces the formation of dislocation loops of 3 to 12 nm with the number density of ~1022 m–3. A high number density (up to ~1024 m–3) of nanoscale precipitations with the average size of ~2 nm is formed during alloy irradiation in the α phase.
About the authors
S. V. Rogozhkin
State Scientific Center of the Russian Federation; National Research Nuclear University MEPhI
Author for correspondence.
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow; Moscow
A. A. Nikitin
State Scientific Center of the Russian Federation; National Research Nuclear University MEPhI
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow; Moscow
N. N. Orlov
State Scientific Center of the Russian Federation; National Research Nuclear University MEPhI
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow; Moscow
T. V. Kulevoy
State Scientific Center of the Russian Federation
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow
P. A. Fedin
State Scientific Center of the Russian Federation
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow
O. A. Korchuganova
State Scientific Center of the Russian Federation; National Research Nuclear University MEPhI
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow; Moscow
M. A. Kozodaev
State Scientific Center of the Russian Federation; National Research Nuclear University MEPhI
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow; Moscow
A. L. Vasiliev
National Research Center “Kurchatov Institute”; A. V. Shubnikov Institute of Crystallography
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow; Moscow
A. S. Orekhov
National Research Center “Kurchatov Institute”; A. V. Shubnikov Institute of Crystallography
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow; Moscow
N. N. Kolobylina
National Research Center “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow
V. P. Leonov
Central Research Institute of Structural Materials “Prometey”
Email: sergey.rogozhkin@itep.ru
Russian Federation, St. Petersburg
I. A. Schastlivaya
Central Research Institute of Structural Materials “Prometey”
Email: sergey.rogozhkin@itep.ru
Russian Federation, St. Petersburg