The evolution of defects in zirconium in the process of hydrogen sorption and desorption

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

The influence of hydrogen sorption-desorption cycles on defect structure of Zr-1Nb alloy was investigated. Specimens were hydroganated from gas atmosphere at temperature 500 °C and pressure 2 atm up to the hydrogen concentration equal to 0.05 wt.% for each cycle. The hydrogen concentration during saturation was determinate by the volumetric method. Then samples were annealed at temperature 900 °C with the heating rate of 4 °C/s. The lattice defects were studied by means of positron lifetime spectroscopy (PLS) and doppler broadening spectroscopy (DBS). New experimental data about the evolution of the average positron lifetieme τavg, as well as the relative changes in the parameters S, W depending treatment stage in Zr-1Nb alloy during thermo hydrogen proccessing was obtained.

Original languageEnglish
Title of host publicationKey Engineering Materials
PublisherTrans Tech Publications Ltd
Pages256-261
Number of pages6
Volume683
ISBN (Print)9783038357292
DOIs
Publication statusPublished - 2016
Event12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015 - Tomsk, Russian Federation
Duration: 21 Apr 201524 Apr 2015

Publication series

NameKey Engineering Materials
Volume683
ISSN (Print)10139826

Conference

Conference12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015
CountryRussian Federation
CityTomsk
Period21.4.1524.4.15

Fingerprint

Zirconium
Sorption
Hydrogen
Desorption
Defects
Positrons
Spectroscopy
Crystal defects
Defect structures
Doppler effect
Heating rate
Gases
Temperature

Keywords

  • Doppler broadening
  • Hydrides formation
  • Hydrogen accumulation
  • Hydrogen release
  • Positron lifetime
  • Zr-H system

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

The evolution of defects in zirconium in the process of hydrogen sorption and desorption. / Laptev, Roman S.; Lider, Andrey M.; Bordulev, Yuriy S.; Kudiyarov, Viktor Nikolaevich; Gvozdyakov, Dmitriy V.

Key Engineering Materials. Vol. 683 Trans Tech Publications Ltd, 2016. p. 256-261 (Key Engineering Materials; Vol. 683).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Laptev, RS, Lider, AM, Bordulev, YS, Kudiyarov, VN & Gvozdyakov, DV 2016, The evolution of defects in zirconium in the process of hydrogen sorption and desorption. in Key Engineering Materials. vol. 683, Key Engineering Materials, vol. 683, Trans Tech Publications Ltd, pp. 256-261, 12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015, Tomsk, Russian Federation, 21.4.15. https://doi.org/10.4028/www.scientific.net/KEM.683.256
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AU - Kudiyarov, Viktor Nikolaevich

AU - Gvozdyakov, Dmitriy V.

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AB - The influence of hydrogen sorption-desorption cycles on defect structure of Zr-1Nb alloy was investigated. Specimens were hydroganated from gas atmosphere at temperature 500 °C and pressure 2 atm up to the hydrogen concentration equal to 0.05 wt.% for each cycle. The hydrogen concentration during saturation was determinate by the volumetric method. Then samples were annealed at temperature 900 °C with the heating rate of 4 °C/s. The lattice defects were studied by means of positron lifetime spectroscopy (PLS) and doppler broadening spectroscopy (DBS). New experimental data about the evolution of the average positron lifetieme τavg, as well as the relative changes in the parameters S, W depending treatment stage in Zr-1Nb alloy during thermo hydrogen proccessing was obtained.

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