Effect of compressive stress on phase transformation in Ti-Fe-Mo alloy during hot deformation

Bin Liu, Hiroaki Matsumoto, Yunpin Li, Akihiko Chiba, Yong Liu, Qiyuan Chen

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

Abstract

Ti-1.5Fe-2.25Mo (mass.%) alloy consisting of hep α phase and bcc β phase was investigated for microstructural changes during isothermal deformation at temperature of 1073-1123K. The results show that a modest deformation stress alters the phase equilibrium, restrains the hcp(α)-to-bcc(β) transformation and induces an unusual bcc(β)-to-hcp(α) transformation. These effects are believed to be caused by the stress-assisted diffusion of the β-stabilizing elements Fe and Mo. The atomic volumes of the involved phases are calculated to determine the effect of the new phase transformation.

Original languageEnglish
Title of host publicationTi 2011 - Proceedings of the 12th World Conference on Titanium
Pages547-551
Number of pages5
Publication statusPublished - 2012 Dec 1
Event12th World Conference on Titanium, Ti 2011 - Beijing, China
Duration: 2011 Jun 192011 Jun 24

Publication series

NameTi 2011 - Proceedings of the 12th World Conference on Titanium
Volume1

Other

Other12th World Conference on Titanium, Ti 2011
CountryChina
CityBeijing
Period11/6/1911/6/24

Keywords

  • Diffusion
  • Phase transformation
  • Thermomechanical processing
  • Titanium alloys

ASJC Scopus subject areas

  • Ceramics and Composites

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    Liu, B., Matsumoto, H., Li, Y., Chiba, A., Liu, Y., & Chen, Q. (2012). Effect of compressive stress on phase transformation in Ti-Fe-Mo alloy during hot deformation. In Ti 2011 - Proceedings of the 12th World Conference on Titanium (pp. 547-551). (Ti 2011 - Proceedings of the 12th World Conference on Titanium; Vol. 1).