Hydride rim formation in e110 zirconium alloy during gas-phase hydrogenation

Viktor Kudiiarov, Ivan Sakvin, Maxim Syrtanov, Inga Slesarenko, Andrey Lider

Research output: Contribution to journalArticle

Abstract

The work is devoted to the study of the laws of the formation of a hydride rim in E110 zirconium alloy claddings during gas-phase hydrogenation. The problem of hydrogen penetration and accumulation and the subsequent formation of hydrides in the volume of zirconium cladding tubes of water-cooled power reactors remain relevant. The formation of brittle hydrides in a zirconium matrix firstly, leads to a significant change in the mechanical properties, and secondly, can cause the destruction of the claddings by the mechanism of delayed hydride cracking. The degree of the hydride’s effect on the mechanical properties of zirconium cladding is mainly determined by the features of the hydride’s distribution and orientation. The problem of hydride rim formation in zirconium alloys with niobium is quite new and poorly studied. Therefore, the study of hydride rim formation in Russian zirconium alloy is important and necessary for predicting the behavior of claddings during the formation of the hydride rim.

Original languageEnglish
Article number247
JournalMetals
Volume10
Issue number2
DOIs
Publication statusPublished - Feb 2020

Keywords

  • Cladding
  • E110 zirconium alloy
  • Gas-phase hydrogenation
  • Hydride rim

ASJC Scopus subject areas

  • Materials Science(all)

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