Changeable Young's modulus with large elongation-to-failure in β-type titanium alloys for spinal fixation applications

Huihong Liu, Mitsuo Niinomi, Masaaki Nakai, Junko Hieda, Ken Cho

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

Materials used for implant rods in spinal fixation systems must show changeable Young's moduli, high strength and large elongation-to-failure. A d-electron design method was used to determine the chemical composition of Ti-10Cr, which showed all these properties and significant work-hardening characteristics owing to multiple plastic deformation mechanisms, such as deformation-induced ω-phase transformation, {3 3 2}<1 1 3> mechanical twinning and dislocation gliding. Therefore, Ti-10Cr exhibits great potential for use in spinal fixation applications.

Original languageEnglish
Pages (from-to)29-32
Number of pages4
JournalScripta Materialia
Volume82
DOIs
Publication statusPublished - 2014 Jul 1

Keywords

  • Changeable Young's modulus
  • Phase transformation
  • Plasticity
  • Titanium alloys
  • Twinning

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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