Microstructure and thermal stability in CP titanium processed by electroplastic rolling

J. Gubicza, E. Khosravi, V. V. Stolyarov

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

1 Citation (Scopus)

Abstract

Ultrafine-grained (UFG) CP titanium (Grade-4) sample was processed by electroplastic rolling (EPR) at room temperature which was compared to a specimen processed by conventional cold rolling (CR). EPR was performed using pulsed unidirectional current with a current density of 95 A/mm2, pulse duration of 10-4 s and frequency of 1000 Hz. It was found that the sample processed by EPR has slightly higher dislocation density and smaller crystallite size than for the CR specimen resulting in a higher tensile strength for the former specimen. In the case of EPR sample, the relative fraction of 〈c+a〉 dislocations is lower than for CR specimen. During annealing the relative fraction of 〈c+a〉 dislocations decreased for both samples which can be explained by the fact that the 〈c+a〉 dislocations have larger Burgers-vector and consequently higher formation energy than the other two types.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages215-218
Number of pages4
Volume465
DOIs
Publication statusPublished - 2011
Event6th International Conference "Materials Structure and Micromechanics of Fracture, MSMF-6" - Brno, Czech Republic
Duration: Jun 28 2010Jun 30 2010

Publication series

NameKey Engineering Materials
Volume465
ISSN (Print)10139826

Other

Other6th International Conference "Materials Structure and Micromechanics of Fracture, MSMF-6"
CountryCzech Republic
CityBrno
Period6/28/106/30/10

Fingerprint

Titanium
Cold rolling
Thermodynamic stability
Microstructure
Burgers vector
Crystallite size
Dislocations (crystals)
Tensile strength
Current density
Annealing
Temperature

Keywords

  • Conventional cold rolling
  • Dislocations
  • Electroplastic rolling
  • Titanium

ASJC Scopus subject areas

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

Cite this

Gubicza, J., Khosravi, E., & Stolyarov, V. V. (2011). Microstructure and thermal stability in CP titanium processed by electroplastic rolling. In Key Engineering Materials (Vol. 465, pp. 215-218). (Key Engineering Materials; Vol. 465). https://doi.org/10.4028/www.scientific.net/KEM.465.215

Microstructure and thermal stability in CP titanium processed by electroplastic rolling. / Gubicza, J.; Khosravi, E.; Stolyarov, V. V.

Key Engineering Materials. Vol. 465 2011. p. 215-218 (Key Engineering Materials; Vol. 465).

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

Gubicza, J, Khosravi, E & Stolyarov, VV 2011, Microstructure and thermal stability in CP titanium processed by electroplastic rolling. in Key Engineering Materials. vol. 465, Key Engineering Materials, vol. 465, pp. 215-218, 6th International Conference "Materials Structure and Micromechanics of Fracture, MSMF-6", Brno, Czech Republic, 6/28/10. https://doi.org/10.4028/www.scientific.net/KEM.465.215
Gubicza J, Khosravi E, Stolyarov VV. Microstructure and thermal stability in CP titanium processed by electroplastic rolling. In Key Engineering Materials. Vol. 465. 2011. p. 215-218. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.465.215
Gubicza, J. ; Khosravi, E. ; Stolyarov, V. V. / Microstructure and thermal stability in CP titanium processed by electroplastic rolling. Key Engineering Materials. Vol. 465 2011. pp. 215-218 (Key Engineering Materials).
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