Preparation method of low-oxygen Ti-6Al-4V alloy by solid state re-deoxidation using calcium

  • Taeheon Kim
  • , Kwangmin Kim
  • , Jung Min Oh
  • , Jeshin Park
  • , Jae Won Lim*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

The oxygen concentration in commercial Ti-6Al-4 V alloys was reduced to less than 400 ppm in this study by the method of solid state re-deoxidation, using calcium as a reductant. The concentration of oxygen in the deoxidised Ti-6Al-4 V alloy was 630 ppm at the optimum deoxidation temperature of 1000°C. When the degree of vacuum was increased and re-deoxidation was carried out, the oxygen concentration decreased to 355 ppm. Therefore, it is possible to prepare a Ti-6Al-4 V alloy with an oxygen concentration of less than 400 ppm by using the solid state re-deoxidation method at a high degree of vacuum of 1.5 × 10-6 Torr.

Original languageEnglish
Pages (from-to)702-708
Number of pages7
JournalMaterials Science and Technology (United Kingdom)
Volume35
Issue number6
DOIs
StatePublished - 2019.04.13

Keywords

  • calcium
  • deoxidation
  • oxygen
  • Ti-6Al-4V

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Mechanical
  • Materials Science
  • Physics & Astronomy

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