We study the accumulation of deuterium in coatings made of FeCrAl alloys and stainless steel, as well as (for comparison) in the Zr1%Nb alloy under the conditions of their saturation with a hydrogen isotope (deuterium) from a gaseous medium. By the method of nuclear reactions, we measure the space distribution of the concentration of deuterium in the coatings after their saturation at a temperature of 450°C (PD = 2·10–3 Pa for 120 min). It is shown that, for the investigated temperature and pressure, deuterium does not penetrate into the bulk of the coatings and is adsorbed in their subsurface regions from which it is then desorbed at a heating temperature higher than the room temperature by 20–30°С.
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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 56, No. 1, pp. 39–46, January–February, 2020.
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Tolstolutska, H.D., Ruzhytskyi, V.V., Kopanets, I.E. et al. Specific Features of Saturation with Deuterium of Vacuum-Arc Coatings Based on Iron. Mater Sci 56, 34–42 (2020). https://doi.org/10.1007/s11003-020-00394-1
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DOI: https://doi.org/10.1007/s11003-020-00394-1