Evolution of the temperature field during deformation and fracture of specimens of coarse-grained and ultrafine-grained titanium

Yu P. Sharkeev, V. P. Vavilov, V. A. Skripnyak, V. A. Klimenov, O. A. Belyavskaya, D. A. Nesteruk, A. A. Kozulin, A. I. Tolmachev

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Studies of the deformation and evolution of temperature fields in flat specimens of BT1-0 titanium in the Coarse-Grained (CG) and nanostructured/ ultrafine-grained (NS/UFG) states and BT6 titanium alloy were performed. The yield and ultimate stresses for NS/UFG BT1-0 titanium are twice as high as those for the CG state and are comparable with the characteristics of the BT6 alloy. It was found that the ultimate strain before damage of NS/UFG titanium specimens that are tensioned at a constant deformation rate of 6.5 × 10 -3 s -1 decreases by a factor of 2. In the region of a macroscopic localization of a plastic deformation the temperature abruptly rises and reaches the maximum values in the crack formation zone. An abrupt temperature increase in the zones of localization of plastic deformations and crack formation is observed in specimens with both the CG and NS/UFG states. Comparing the experimental data on the temperature distributions on the surfaces of strained CG and NS/UFG titanium specimens shows that a macroscopic plastic deformation develops more uniformly in BT1-0 titanium in the NS/UFG state. Under identical loading conditions, the heat release rate is higher for BT1-0 titanium in the NS/UFG state.

Original languageEnglish
Pages (from-to)701-706
Number of pages6
JournalRussian Journal of Nondestructive Testing
Volume47
Issue number10
DOIs
Publication statusPublished - Oct 2011

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Titanium
Temperature distribution
temperature distribution
titanium
plastic deformation
Plastic deformation
crack initiation
Crack initiation
titanium alloys
Titanium alloys
Ultrafine
damage
heat
Temperature
temperature

Keywords

  • Fracture
  • Plastic deformation
  • Temperature fields
  • Thermography
  • Titanium
  • Ultrafine-grained state
  • Yield and ultimate stresses

ASJC Scopus subject areas

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

Cite this

Evolution of the temperature field during deformation and fracture of specimens of coarse-grained and ultrafine-grained titanium. / Sharkeev, Yu P.; Vavilov, V. P.; Skripnyak, V. A.; Klimenov, V. A.; Belyavskaya, O. A.; Nesteruk, D. A.; Kozulin, A. A.; Tolmachev, A. I.

In: Russian Journal of Nondestructive Testing, Vol. 47, No. 10, 10.2011, p. 701-706.

Research output: Contribution to journalArticle

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