Open AccessEffect of Hydrogen, Hydride Orientation and Temperature on Low-Cycle Fatigue Resistance of Zr-1%Nb Fuel Rod Claddings
Author(s) -
G.P. Riedkina,
V. Grytsyna,
Sergiy Klymenko,
T. P. Chernyayeva
Publication year - 2021
Publication title -
âderna ta radìacìjna bezpeka
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.221
H-Index - 5
ISSN - 2073-6231
DOI - 10.32918/nrs.2021.4(92).07
Subject(s) - cladding (metalworking) , materials science , hydride , hydrogen , zirconium alloy , alloy , metallurgy , composite material , low cycle fatigue , chemistry , metal , organic chemistry
Low-cycle fatigue testing was conducted on annular samples with an outer diameter of 9.13 mm, a wall thickness of 0.68 mm and a width of 2.7 mm, namely: non-hydrogenated samples (cut out of standard Zr‑1%Nb cladding tubes); hydrogenated samples with a hydrogen concentration of 50 ... 400 ppm; samples cut out from hydrogenated dummy claddings after hydride reorientation tests performed according to various test modes. The tests were conducted at the temperatures of 25, 180, 350, 400 and 450 °С. The results obtained demonstrate that with increasing the hydrogen content in Zr-1%Nb alloy claddings the fatigue life increases.