Dynamics of defects accumulation during hydrogen charge of titanium and stainless steel

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

Abstract

The hydrogen influence on dynamics of defects formation in VT1-0 titanium and 316- stainless steel was studied. The electrolytic charge by hydrogen in LiOH+H2O solution were performed at a current density 0,5-1 A/cm2. Optical and raster electron microscopy, have revealed a considerable amount of the defects on a sample surface which have appeared after enrichment with hydrogen. For stainless steel, as opposed to titanium, at time of hydrogen charge less than 1 hour and current densities up to 1 A/cm2 surface erosion is not detected. The studying of metals bulk defects were performed by positrons annihilation method. The results of measurement of a positron lifetime have shown that about 150 microns depths the fundamental contribution (up to 90 %) is determined by single vacancies and dislocation. The hydrogen in stainless steel is actively connecting with carbides on borders of grains, therefore there is exhibiting of borders grains. The obtained results allow making a conclusion that a bulk destruction of metal grains is not occurs.

Original languageEnglish
Title of host publication5th Korea-Russia International Symposium on Science and Technology - Proceedings: KORUS 2001
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages241-244
Number of pages4
Volume2
ISBN (Print)0780370082, 9780780370081
DOIs
Publication statusPublished - 2001
Event5th Korea-Russia International Symposium on Science and Technology, KORUS 2001 - Tomsk, Russian Federation
Duration: 26 Jun 20013 Jul 2001

Other

Other5th Korea-Russia International Symposium on Science and Technology, KORUS 2001
CountryRussian Federation
CityTomsk
Period26.6.013.7.01

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Keywords

  • Hydrogen
  • Positron annihilation
  • Stainless steel
  • Titanium

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Computer Networks and Communications
  • Biotechnology
  • Civil and Structural Engineering
  • Mechanics of Materials
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Surfaces, Coatings and Films

Cite this

Chernov, I. P., Cherdantzev, Y. P., Lider, A. M., Garanin, G. V., & Nikitenkov, N. N. (2001). Dynamics of defects accumulation during hydrogen charge of titanium and stainless steel. In 5th Korea-Russia International Symposium on Science and Technology - Proceedings: KORUS 2001 (Vol. 2, pp. 241-244). [975242] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/KORUS.2001.975242