Hydrogenation behavior of Cr-coated laser beam welds of E110 zirconium alloy

Hydrogenation behavior of Cr-coated laser beam welds of E110 zirconium alloy

Бібліографічні деталі
Parent link:Journal of Nuclear Materials
Vol. 570.— 2022.— [153980, 10 p.]
Співавтори: Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение экспериментальной физики, Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Научно-образовательный центр Б. П. Вейнберга
Інші автори: Kashkarov E. B. Egor Borisovich, Kudiyarov V. N. Victor Nikolaevich, Kurdyumov N. Nikita, Krinitsyn M. G. Maksim Germanovich, Sidelev D. V. Dmitry Vladimirovich
Резюме:Title screen
The influence of chromium coating on hydrogenation behavior of laser beam welds (LBW) of E110 zirconium alloy was studied at 360-900 °C and hydrogen pressure of 2 bar. The deposition of Cr coating can slow down hydrogen absorption rate of the LBW samples as activation energy for hydrogen absorption (70 kJ/mol) is higher compared to uncoated ones (61 kJ/mol). The growth of hydrides depends on the hydrogenation conditions and original microstructure of welded alloy in different zones. Nanoindentation and three-point bending tests show that hydride precipitations can cause hardening of LBW E110 alloy samples and loss of its plasticity. Some additional aspects of applying Cr coatings for protection of LBW Zr alloy in hydrogen atmosphere are presented.
Режим доступа: по договору с организацией-держателем ресурса
Опубліковано: 2022
Предмети:
электронный ресурс
труды учёных ТПУ
magnetron sputtering
laser beam welding
hydrogenation
zirconium alloys
protective coatings
accident tolerant fuel
магнетронное напыление
лазерная сварка
гидрогенизация
циркониевые сплавы
защитные покрытия
Онлайн доступ:https://doi.org/10.1016/j.jnucmat.2022.153980
Формат: Електронний ресурс Частина з книги
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668382
Опис
Резюме:Title screen
The influence of chromium coating on hydrogenation behavior of laser beam welds (LBW) of E110 zirconium alloy was studied at 360-900 °C and hydrogen pressure of 2 bar. The deposition of Cr coating can slow down hydrogen absorption rate of the LBW samples as activation energy for hydrogen absorption (70 kJ/mol) is higher compared to uncoated ones (61 kJ/mol). The growth of hydrides depends on the hydrogenation conditions and original microstructure of welded alloy in different zones. Nanoindentation and three-point bending tests show that hydride precipitations can cause hardening of LBW E110 alloy samples and loss of its plasticity. Some additional aspects of applying Cr coatings for protection of LBW Zr alloy in hydrogen atmosphere are presented.
Режим доступа: по договору с организацией-держателем ресурса
DOI:10.1016/j.jnucmat.2022.153980

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