Kinetics of α’-phase nucleation during thermal aging of Fe–22% Cr alloy
- Autores: Rogozhkin S.1,2, Korchuganova O.1,2, Aleev A.1,2
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Afiliações:
- National Research Nuclear University Moscow Engineering Physics Institute
- Institute for Theoretical and Experimental Physics
- Edição: Volume 7, Nº 2 (2016)
- Páginas: 210-213
- Seção: Materials of Power Engineering and Radiation-Resistant Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/204934
- DOI: https://doi.org/10.1134/S2075113316020179
- ID: 204934
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Resumo
The initial stage of phase separation of binary Fe–22 at % Cr alloy during thermal aging at 500°C is studied at the atomic-scale level by atom probe tomography. Upon the behavior analysis of pair-correlation function of chromium atoms, long-range correlations typical of spinodal decomposition are observed at short aging times, which disappear 25 h after aging. The analysis of 3D atomic maps shows that Cr-rich regions form at the initial steps of decomposition, where the chromium concentration increases with an increase in the aging time. At the aging time of ~100 h, the chromium concentration in the center of these regions reaches 80 at %, which corresponds to the α' phase.
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Sobre autores
S. Rogozhkin
National Research Nuclear University Moscow Engineering Physics Institute; Institute for Theoretical and Experimental Physics
Autor responsável pela correspondência
Email: SVRogozhkin@mephi.ru
Rússia, Kashirskoe sh. 31, Moscow, 115409; ul. B. Cheremushkinskaya 25, Moscow, 117218
O. Korchuganova
National Research Nuclear University Moscow Engineering Physics Institute; Institute for Theoretical and Experimental Physics
Email: SVRogozhkin@mephi.ru
Rússia, Kashirskoe sh. 31, Moscow, 115409; ul. B. Cheremushkinskaya 25, Moscow, 117218
A. Aleev
National Research Nuclear University Moscow Engineering Physics Institute; Institute for Theoretical and Experimental Physics
Email: SVRogozhkin@mephi.ru
Rússia, Kashirskoe sh. 31, Moscow, 115409; ul. B. Cheremushkinskaya 25, Moscow, 117218