Influence of an applied strain field on microstructural evolution during the α2→O-phase transformation in Ti-Al-Nb system

Y. H. Wen, Y. Wang, L. Q. Chen

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


We investigate the influence of an applied homogeneous strain on the coherent α2 (DO19) to O-phase transformation in Ti-Al-Nb alloys using a phase-field approach. The emphasis is on the effect of the applied strain on the two-phase morphology, as well as the equilibrium volume fractions of different orientation domains of the O-phase. It is found that the applied homogeneous strain field does not change the essential features of the morphological patterns, but does alter the relative amount of each orientation domain and the equilibrium volume fraction of the O-phase. When the applied strain is of the same order of magnitude as the stress-free transformation strain, the initial two-phase mixture becomes unstable and transforms into a single O-phase.

Original languageEnglish (US)
Pages (from-to)13-20
Number of pages8
JournalActa Materialia
Issue number1
StatePublished - Jan 8 2001

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

Fingerprint Dive into the research topics of 'Influence of an applied strain field on microstructural evolution during the α<sub>2</sub>→O-phase transformation in Ti-Al-Nb system'. Together they form a unique fingerprint.

Cite this