Promoting nano/ultrafine-duplex structure via accelerated α precipitation in a β-type titanium alloy severely deformed by high-pressure torsion

W. Xu*, D. P. Edwards, X. Wu, M. Stoica, M. Calin, U. Kühn, J. Eckert, K. Xia

*Corresponding author for this work

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The introduction of severe plastic deformation by high-pressure torsion greatly altered the ageing response of a Ti-20 wt.% Mo β alloy, promoting equiaxed (instead of acicular) α precipitation to form a complete ultrafine-duplex (α + β) structure when subjected to sufficiently high strain. Three prominent features, namely abundant grain boundaries, enhanced atomic transport and nanoscale β matrix grains, were recognized as decisive factors contributing to such unusual precipitation behaviour.

Original languageEnglish
Pages (from-to)67-70
Number of pages4
JournalScripta Materialia
Volume68
Issue number1
DOIs
Publication statusPublished - Jan 2013
Externally publishedYes

Keywords

  • β titanium alloy
  • High-pressure torsion
  • Nanostructured materials
  • Precipitation
  • Severe plastic deformation

Fingerprint Dive into the research topics of 'Promoting nano/ultrafine-duplex structure via accelerated α precipitation in a β-type titanium alloy severely deformed by high-pressure torsion'. Together they form a unique fingerprint.

  • Cite this