Microstructure of Ti–5Al–4V–2Zr alloy in the initial condition and after irradiation with titanium ions
- Autores: Rogozhkin S.1,2, Nikitin A.1,2, Orlov N.1,2, Kulevoy T.1, Fedin P.1, Korchuganova O.1,2, Kozodaev M.1,2, Vasiliev A.3,4, Orekhov A.3,4, Kolobylina N.3, Leonov V.5, Schastlivaya I.5
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Afiliações:
- 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”
- Edição: Volume 8, Nº 2 (2017)
- Páginas: 279-285
- Seção: 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
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Resumo
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.
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Sobre autores
S. Rogozhkin
State Scientific Center of the Russian Federation; National Research Nuclear University MEPhI
Autor responsável pela correspondência
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow; Moscow
A. Nikitin
State Scientific Center of the Russian Federation; National Research Nuclear University MEPhI
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow; Moscow
N. Orlov
State Scientific Center of the Russian Federation; National Research Nuclear University MEPhI
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow; Moscow
T. Kulevoy
State Scientific Center of the Russian Federation
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow
P. Fedin
State Scientific Center of the Russian Federation
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow
O. Korchuganova
State Scientific Center of the Russian Federation; National Research Nuclear University MEPhI
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow; Moscow
M. Kozodaev
State Scientific Center of the Russian Federation; National Research Nuclear University MEPhI
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow; Moscow
A. Vasiliev
National Research Center “Kurchatov Institute”; A. V. Shubnikov Institute of Crystallography
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow; Moscow
A. Orekhov
National Research Center “Kurchatov Institute”; A. V. Shubnikov Institute of Crystallography
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow; Moscow
N. Kolobylina
National Research Center “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow
V. Leonov
Central Research Institute of Structural Materials “Prometey”
Email: sergey.rogozhkin@itep.ru
Rússia, St. Petersburg
I. Schastlivaya
Central Research Institute of Structural Materials “Prometey”
Email: sergey.rogozhkin@itep.ru
Rússia, St. Petersburg