X-Ray Diffraction Analysis of the Influence of the Absorbed γ-Irradiation Dose on Ti3Al Structural Characteristics

M. V. Loginova, V. I. Yakovlev, A. A. Sitnikov, V. Yu Filimonov, A. V. Sobachkin, A. V. Gradoboev

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The influence of absorbed γ-quantum irradiation doses Dγ (60Co isotope) on the structural parameters of Ti3Al single-phase compounds is experimentally investigated. The structural characteristics are defined more accurately using X-ray diffractometry. On account of the results of structural studies, it is found that exposure to low γ-radiation doses (e.g., Dγ = 1 × 103 Gy) generates the nonequilibrium state of the Ti3Al structure. An increase in the absorbed dose (to Dγ = 1 × 105 Gy) stimulates the formation of a metastable radiation-induced state, which is identified by diffraction-reflection splitting, an increase in the crystal-lattice volume, and changes in the parameters of the fine structure (the coherent-scattering-region size decreases to 13 nm, and the defect concentration increases).

Original languageEnglish
Pages (from-to)480-484
Number of pages5
JournalJournal of Surface Investigation
Volume12
Issue number3
DOIs
Publication statusPublished - 1 May 2018

Keywords

  • coherent-scattering region
  • crystal lattice
  • gamma irradiation
  • microstrain
  • structural state
  • titanium aluminides
  • X-ray diffractometry

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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