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Modeling of hot deformation behavior with dynamic recrystallization in TC4 titanium alloy

  • Chun Lei Pu , Guo Hui Zhu , Ying Long Tao and Shu Bao Yang
Published/Copyright: August 7, 2015
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 106 Issue 8

Abstract

Isothermal compression tests of TC4 titanium alloy over a temperature range of 973 K to 1123 K and strain rate range of 0.1 s−1 to 30 s−1 showed that dynamic recrystallization (DRX) occurred under all deformation conditions. To model the flow stress taking into account the DRX behavior, the model was divided into two stages by the critical strain of DRX (∊c) calculated using the Poliak–Jonas method. The flow stress in the first stage with no DRX (∊ ≤ ∊c) was described by the Estrin–Mecking equation. The flow stress in the second stage with DRX (∊ > ∊c) was expressed by the interaction of work hardening, dynamic recovery, and DRX. The function relationship between the principal parameters in the flow stress model and the deformation conditions described by the Zener–Hollomon parameter was also analyzed. The prediction of the constructed flow stress model agreed well with the experimental results.

Keywords: Dynamic recrystallization; Flow stress model; Hot deformation; TC4 titanium alloy
* Correspondence address, Prof. Guo Hui Zhu, School of Materials Science & Engineering, University of Science and Technology Beijing, Haidian District, 100083 Beijing City, P.R. China, Tel.: +861062332300, Fax: +861062332989, E-mail:

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Received: 2014-12-03
Accepted: 2015-03-03
Published Online: 2015-08-07
Published in Print: 2015-08-11

© 2015, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111241
Keywords for this article
Dynamic recrystallization; Flow stress model; Hot deformation; TC4 titanium alloy

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Effect of carbon on the solubility of nitrogen in slag
  5. Phase equilibria investigations and thermodynamic modeling of the PbO–Al2O3 system
  6. Experimental investigation of the phase equilibria in the Co–Fe–Ti ternary system
  7. Microstructural investigation on marforming and conventional cold deformation in Ni–Ti–Fe-based shape memory alloys
  8. Modeling of hot deformation behavior with dynamic recrystallization in TC4 titanium alloy
  9. Powder metallurgy of high speed-steel produced by solid state sintering and heat treatment
  10. Effect of annealing and surfactant on photoluminescence of ZnS:O2− nanoparticles
  11. An experimental investigation into the effects of Cr2O3 and ZnO2 nanoparticles on the mechanical properties and durability of self-compacting mortar
  12. Optical properties and weakening of elastic moduli with increasing glass transition temperature (Tg) in (80–x)TeO2-xBaO-20ZnO glasses
  13. Simple fabrication of highly ordered anodic aluminum oxide (AAO) films
  14. Short Communications
  15. Launching particle to constant reinforcement ratio as a parameter for improving the nanoreinforcement distribution and tensile strength of aluminum nanometal matrix composites
  16. Manganese ferrite–graphene nanocomposite as a high-performance anode material for lithium-ion batteries
  17. Facile synthesis of TiO2 nanoplates decorated with Ag nanoparticles for electro-oxidation of hydrazine
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