Structure evolution and mechanical properties of beryllium foils subjected to cold rolling and high-vacuum annealing

V. V. Mishin, P. A. Glukhov, I. A. Shishov, O. N. Stolyarov, I. A. Kasatkin

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The effects of microstructure and texture evolution on the mechanical properties of beryllium foils subjected to hot multi-pass cross-rolling and cold rolling with high-vacuum annealing were examined in this work. Electron backscatter diffraction (EBSD) technique was used to characterize the changes in the beryllium microstructure and texture. Yield strength, ultimate tensile strength and elongation to failure were determined in tensile tests. The results show that microstructure and texture significantly affect the mechanical properties of the beryllium foils. The foils after hot multi-pass cross-rolling have a split basal {0001} <10-10> ± 30° transverse direction texture, which leads to a strong anisotropy of their mechanical properties, low strength and ductility in transverse direction. Cold rolling with high-vacuum annealing significantly enhances the mechanical properties of foils. It is due to a more homogeneous microstructure and reduced anisotropy owing to a strong basal fiber <0001> texture. Enhanced ductility of beryllium foils can be achieved by using regimes with high strains before final annealing.

Original languageEnglish
Pages (from-to)60-69
Number of pages10
JournalMaterials Science and Engineering A
Volume750
DOIs
StatePublished - 18 Mar 2019

Keywords

  • Anisotropy
  • Beryllium
  • Cold rolling
  • EBSD
  • Hot rolling
  • Texture

Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Mishin, V. V. ; Glukhov, P. A. ; Shishov, I. A. ; Stolyarov, O. N. ; Kasatkin, I. A. / Structure evolution and mechanical properties of beryllium foils subjected to cold rolling and high-vacuum annealing. In: Materials Science and Engineering A. 2019 ; Vol. 750. pp. 60-69.
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Structure evolution and mechanical properties of beryllium foils subjected to cold rolling and high-vacuum annealing. / Mishin, V. V.; Glukhov, P. A.; Shishov, I. A.; Stolyarov, O. N.; Kasatkin, I. A.

In: Materials Science and Engineering A, Vol. 750, 18.03.2019, p. 60-69.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Kasatkin, I. A.

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