Effect of Ta content on mechanical properties of Ti-30Nb-XTa-5Zr

Nobuhito Sakaguchi, Mitsuo Niinomi, Toshikazu Akahori, Junji Takeda, Hiroyuki Toda

Research output: Contribution to journalConference articlepeer-review

66 Citations (Scopus)


In this study, we investigated the effect of Ta content on the mechanical properties of Ti-30Nb-XTa-5Zr fabricated by a powder metallurgy method, for biomedical applications. The Ta content ranged from 0% to 20 mass%. The microstructures of Ti-30Nb-XTa-5Zr that contain less than 5 mass% Ta comprise β phase and an ω phase. The tensile properties of Ti-30Nb-XTa-5Zr change with a change in their deformation mechanisms. The deformation mechanisms of Ti-30Nb-XTa-5Zr, which contains less than 10 mass% Ta, is the stress-induced martensite (SIM) transformation, while that of Ti-30Nb-XTa-5Zr, which contains over 20 mass% Ta, is the slip mechanism. The minimum elastic modulus is obtained in Ti-30Nb-10Ta-5Zr, which comprises a single β phase.

Original languageEnglish
Pages (from-to)370-376
Number of pages7
JournalMaterials Science and Engineering C
Issue number3
Publication statusPublished - 2005 May 1
EventSelected Papers Presented at the Materials Science and Technology 2004 Meeting: Titanium for Biomedical, Dental, and Healthcare -
Duration: 2004 Sept 262004 Sept 29


  • Biomaterial
  • Deformation mechanism
  • Elastic modulus
  • Microstructure
  • Powder metallurgy
  • Ta content
  • Titanium alloy

ASJC Scopus subject areas

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


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