НИЗКОТЕМПЕРАТУРНАЯ АБСОРБЦИЯ ВОДОРОДА СПЛАВОМ ZR-2,5%NB В УСЛОВИЯХ РЕАКТОРНОГО ОБЛУЧЕНИЯ

Translated title of the contribution: LOW-TEMPERATURE HYDROGEN ABSORPTION BY Zr-2,5%Nb ALLOY UNDER IN-PILE IRRADIATION

В. А. Цыгвинцев, С. А. Аверин, Владимир Иванович Пастухов, С. В. Старицын

Research output: Contribution to journalArticlepeer-review

Abstract

Hydrogen absorption by Zr-2,5%Nb alloy has been investigated under irradiation with fluence up to 4,21022 n/cm2 (Е>0,1 MeV) at temperatures in the range between 40 °C and 80 °С. It was shown that at hydrogen concentration higher than ~20 ppm the S-ZrH166 phase with face-centered cubic lattice is formed. At hydrogen concentration higher than ~30 ppm hydrides (blisters) are accumulated on the water-cooled zirconium surface. When hydrogen concentration increases so do blister density and size. It was determined that hydrogen absorption by metal depends on sediment size and irradiation temperature. During CPS channel operation the hydrogen concentration in metal almost does not depend on fluence. The effect on hydrogen absorption of the phase composition of zirconium alloy is observed.
Translated title of the contributionLOW-TEMPERATURE HYDROGEN ABSORPTION BY Zr-2,5%Nb ALLOY UNDER IN-PILE IRRADIATION
Original languageRussian
Pages (from-to)23-29
Number of pages7
JournalВопросы атомной науки и техники. Серия: Материаловедение и новые материалы
Issue number5(96)
Publication statusPublished - 2018

GRNTI

  • 44.00.00 ENERGETICS

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