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Электронный каталог: Samadov, S. - Structural and Microstructural Evolution of W–Ni Heavy Alloys Under High-Energy He*+ Irradiation
Samadov, S. - Structural and Microstructural Evolution of W–Ni Heavy Alloys Under High-Energy He*+ Irradiation
Статья
Автор: Samadov, S.
Radiation Physics and Chemistry: Structural and Microstructural Evolution of W–Ni Heavy Alloys Under High-Energy He*+ Irradiation
б.г.
ISBN отсутствует
Автор: Samadov, S.
Radiation Physics and Chemistry: Structural and Microstructural Evolution of W–Ni Heavy Alloys Under High-Energy He*+ Irradiation
б.г.
ISBN отсутствует
На полку
Статья
Samadov, S.
Structural and Microstructural Evolution of W–Ni Heavy Alloys Under High-Energy He*+ Irradiation / S.Samadov, R.Isayev, A.Vladimirovna, A.Abiyev. – Text : electronic // Radiation Physics and Chemistry. – 2026. – Vol. 241. – P. 113564. – URL: https://doi.org/10.1016/j.radphyschem.2025.113564. – Bibliogr.: 113564-8.
The structural response of W–Ni heavy metal alloys to high-energy helium ion irradiation was systematically investigated by combining SRIM (Stopping and Range of Ions in Matter) simulations with X-ray diffraction (XRD) analysis. W–Ni alloys fabricated via powder metallurgy were irradiated with 2.5 MeV He&sup(+) ions at fluences ranging from 3.3 × 10&sup(14) ions/cm&sup(2) to 1.1 × 10&sup(17) ions/cm&sup(2) . SRIM calculations revealed a pronounced damage maximum at ~3.9 *mm, accompanied by low overall displacement per atom (DPA) values (<10&sup(−3), suggesting that the primary W phase retains structural stability under irradiation. XRD coupled with Rietveld refinement confirmed the cubic W phase (Im-3m, No. 229) as the dominant phase, while a secondary tetragonal WNi4 phase (I4/m, No. 87) exhibited irradiation-driven transformations. The W phase showed limited lattice expansion and microstrain relaxation, whereas the WNi4 phase demonstrated peak broadening, loss of long-range order, and selective amorphization in Ni-rich regions. Williamson–Hall and Scherrer analyses revealed a non-linear evolution of crystallite size, microstrain, and dislocation density, governed by defect generation, migration, and annihilation processes. These findings highlight defect formation and atomic migration at phase boundaries as the key driving forces of irradiation-induced microstructural transformations. Overall, the demonstrated stability of W–Ni alloys under irradiation underscores their potential as promising candidates for nuclear reactor components and other advanced applications requiring radiation-resistant structural materials.
Спец.(статьи,препринты) = С 349.1 - Действие излучения на материалы$
Спец.(статьи,препринты) = С 332.8 - Синхротронное излучение. Лазеры на свободных электронах. Получение и использование рентгеновских лучей
ОИЯИ = ОИЯИ (JINR)2026
Ключевых слов = 26/026
Samadov, S.
Structural and Microstructural Evolution of W–Ni Heavy Alloys Under High-Energy He*+ Irradiation / S.Samadov, R.Isayev, A.Vladimirovna, A.Abiyev. – Text : electronic // Radiation Physics and Chemistry. – 2026. – Vol. 241. – P. 113564. – URL: https://doi.org/10.1016/j.radphyschem.2025.113564. – Bibliogr.: 113564-8.
The structural response of W–Ni heavy metal alloys to high-energy helium ion irradiation was systematically investigated by combining SRIM (Stopping and Range of Ions in Matter) simulations with X-ray diffraction (XRD) analysis. W–Ni alloys fabricated via powder metallurgy were irradiated with 2.5 MeV He&sup(+) ions at fluences ranging from 3.3 × 10&sup(14) ions/cm&sup(2) to 1.1 × 10&sup(17) ions/cm&sup(2) . SRIM calculations revealed a pronounced damage maximum at ~3.9 *mm, accompanied by low overall displacement per atom (DPA) values (<10&sup(−3), suggesting that the primary W phase retains structural stability under irradiation. XRD coupled with Rietveld refinement confirmed the cubic W phase (Im-3m, No. 229) as the dominant phase, while a secondary tetragonal WNi4 phase (I4/m, No. 87) exhibited irradiation-driven transformations. The W phase showed limited lattice expansion and microstrain relaxation, whereas the WNi4 phase demonstrated peak broadening, loss of long-range order, and selective amorphization in Ni-rich regions. Williamson–Hall and Scherrer analyses revealed a non-linear evolution of crystallite size, microstrain, and dislocation density, governed by defect generation, migration, and annihilation processes. These findings highlight defect formation and atomic migration at phase boundaries as the key driving forces of irradiation-induced microstructural transformations. Overall, the demonstrated stability of W–Ni alloys under irradiation underscores their potential as promising candidates for nuclear reactor components and other advanced applications requiring radiation-resistant structural materials.
Спец.(статьи,препринты) = С 349.1 - Действие излучения на материалы$
Спец.(статьи,препринты) = С 332.8 - Синхротронное излучение. Лазеры на свободных электронах. Получение и использование рентгеновских лучей
ОИЯИ = ОИЯИ (JINR)2026
Ключевых слов = 26/026
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