Mechanical properties of porous Ti-15Mo-5Zr-3Al compacts prepared by powder sintering

N. Nomura, T. Kohama, I. H. Oh, S. Hanada, A. Chiba, M. Kanehira, K. Sasaki

Research output: Contribution to journalConference articlepeer-review

48 Citations (Scopus)

Abstract

Porous Ti alloy compacts were fabricated and their microstructure and mechanical properties were investigated in this study. Ti alloy powders were atomized from Ti-15Mo-5Zr-3Al (wt.%) bar using the plasma rotating electrode process (PREP) in an Ar atmosphere. These alloy powders were sintered under 1-30 MPa at 1223 K for 7.2 ks by hot-pressing (HP). These compacts were solution treated at 1223 K for 1.2 ks, and then quenched into iced water (STQ). X-ray diffraction analysis revealed that a small amount of α phase appeared in the β phase of the HP compacts, while not in the STQ compacts. Young's modulus of STQ compacts is lower than that of HP compacts. It was found that the strength of porous Ti-15Mo-5Zr-3Al is higher than those of porous pure Ti and human cortical bone, as compared in the range from 10 to 30 GPa of Young's modulus for human bone.

Original languageEnglish
Pages (from-to)330-335
Number of pages6
JournalMaterials Science and Engineering C
Volume25
Issue number3
DOIs
Publication statusPublished - 2005 May
EventSelected Papers Presented at the Materials Science and Technology 2004 Meeting: Titanium for Biomedical, Dental, and Healthcare -
Duration: 2004 Sep 262004 Sep 29

Keywords

  • Hot-pressing
  • PREP
  • Porous titanium alloy
  • Yield strength
  • Young's modulus

ASJC Scopus subject areas

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

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