Compositional variability in gum metal

R.J. Talling, R.J. Dashwood, M. Jackson, D. Dye

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

β-Ti alloy Gum metals were defined as Ti–24(Nb + Ta + V)–(Zr,Hf)–O (at.%) by Saito et al. [T. Saito et al., Science 300 (2003) 464]. Previous work has focused on compositions near Ti–23Nb–0.7Ta–2Zr–O. Here, Ti–24V–28Zr–2O was examined; similar single-crystal elastic constants were observed. However, the alloy was found to be brittle and did not form α″ during loading, unlike the Ti–Nb alloy. V-rich body-centred cubic precipitates were also observed. Therefore the β stability parameters e/a, Bo and Md alone are insufficient to define the compositional range of Gum metals.
Original languageEnglish
Pages (from-to)1000-1003
Number of pages4
JournalScripta Materialia
Volume60
Issue number11
Early online date27 Feb 2009
DOIs
Publication statusPublished - Jun 2009

Keywords

  • Gum metal
  • Martensitic phase transformation
  • Titanium alloys
  • Synchrotron radiation
  • Ab initio electron theory

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