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Effect of Thermo-Mechanical Deformation on the Microstructure Evolution in a High Temperature Ti Alloy with Erbium

  • Tongbo Wang
  • Bolong Li
  • Xu Qiao
  • Peng Qi
  • Zuoren Nie
Conference paper

Abstract

The effect of thermo-mechanical deformation on the microstructure was investigated by isothermal compression and microstructure characterization. The mechanical response of as-casted Ti–6.2Al–3Sn–5Zr–0.5Mo–1.0Nb–0.4Si–0.2Er titanium alloy was sensitive to the deformation temperatures and strain rates. The true stress increased with the increase in the strain rate and decreased in temperature. The discontinuous dynamic recrystallization of β phase was promoted with the increase in temperatures. Global α phase generated during the deformation at a temperature of 980 °C. The (Ti, Zr)3Si and participated phase were dissolved into the matrix above 950 °C, which acted as the homogenizing annealing process. However, novel participated phases with an average diameter of 20 nm generated.

Keywords

Thermo-mechanical deformation High-temperature titanium Microstructure 

Notes

Acknowledgements

This research was supported by the Beijing Natural Science Foundation (Project No. 2162004), and National Natural Science Foundation of China (Project No. 51371013).

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Tongbo Wang
    • 1
  • Bolong Li
    • 1
  • Xu Qiao
    • 1
  • Peng Qi
    • 1
  • Zuoren Nie
    • 1
  1. 1.Beijing University of TechnologyChaoyang District, BeijingChina

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