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Influence of Grain Size and Strain Rate on the Constitutive Response and Texture Evolution in High-Purity Titanium

  • George T. Gray
  • , Ellen K. Cerreta
  • , Shuh Rong Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The effect of strain rate, temperature, grain size, and texture on the substructure and mechanical response of high-purity polycrystalline titanium is presented. The compressive stress-strain response of 20 and 240 µm grain size high-purity Ti was found to depend on both the applied strain rate, test temperature, and crystallographic texture. The substructure of high-purity Ti deformed at high-strain-rate or quasi-statically at -196°C (77K) displayed a higher incidence of deformation twinning than during quasi-static deformation at 25°C (298K) as characterized using electron backscatter diffraction. Coupling of MTS constitutive modeling of the mechanical behavior with Taylor cylinder testing and finite-element simulations of the Taylor-cylinder impact testing is shown to provide an effective means to validate the high-strain-rate constitutive behavior of high-purity Ti.

Original languageEnglish
Title of host publicationTi-2007 - Proceedings of the 11th World Conference on Titanium
EditorsM. Niinomi, S. Akiyama, M. Ikeda, M. Hagiwara, K. Maruyama
PublisherUnknown Publisher
Pages215-218
Number of pages4
ISBN (Electronic)9784889034066
StatePublished - 2007
Event11th World Conference on Titanium, Ti-2007 -
Duration: Jan 1 2007 → …

Publication series

NameTi-2007 - Proceedings of the 11th World Conference on Titanium
Volume1

Conference

Conference11th World Conference on Titanium, Ti-2007
Period01/1/07 → …

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