Study of biocompatible and high melting point Ti-Ta-Nb ternary alloys: Development of a non-contaminating melting process

Hisao Fukui, Wei Yang, Arimichi Morita, Shizuo Hayashi, Mitsuo Niinomi, Jiro Hasegawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A one-coil type Cold Crucible Levitation Melting furnace, with capacity of 100g and supplied by a frequency inverter power system, is used successfully for melting Ti-10Ta-20Nb, Ti-20Ta-30Nb and Ti-30Nb alloys under argon atmosphere of 7.4×104Pa, adopting supply conditions of 60kHz, 50kw/30sec for fusing the raw materials and 30kw/5min for homogenization. 70g ingots were gained, and then were analyzed by EPMA. The cast microstructure of all alloys presents dendrite-type. Elements almost distribute uniformly in ingots, only a Ta-rich bond is found in the lower part of some Ti-20Ta-30Nb and Ti-30Ta ingots. The real contents of Nb in all the samples are smaller than the nominal. Improving measures are also pointed out.

Original languageEnglish
Pages (from-to)461-467
Number of pages7
JournalInternational Journal of Materials and Product Technology
Issue numberSPEC ISS. VOL.2
Publication statusPublished - 2001
Externally publishedYes

Keywords

  • Biomedical materials
  • Cold crucible levitation melting
  • Ti-Ta-Nb alloys

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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