Effect of Ni Concentrations and C/O Ratios on the Stability of Nonmetallic Inclusions in Ni-Rich Ti-Ni Alloys

Fumiyoshi Yamashita, Yohei Soejima, Hiroshi Akamine, Minoru Nishida

Research output: Contribution to journalArticlepeer-review

Abstract

The effects of Ni concentrations and carbon to oxygen (C/O) ratios on the phase formation during the commercial production process and morphology of nonmetallic inclusions were investigated in Ni-rich Ti-Ni alloys. In the process from casting to forging, a phase change from Ti(C,O) to Ti4Ni2OX occurred depending on the Ni concentration and C/O ratios. The phase change from Ti(C,O) to Ti4Ni2OX was easy to proceed in the alloys with low Ni concentrations and C/O ratios, whereas the Ti(C,O) was stable in the alloys with high Ni concentrations and C/O ratios.

Original languageEnglish
Pages (from-to)162-166
Number of pages5
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume85
Issue number4
DOIs
Publication statusPublished - 2021

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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