Melting temperature and order-disorder transformation of melt-spun (Fe, Pt)-Zr-B nanocrystalline alloys

Teruo Bitoh, Mai Nakagawa, Akihiro Makino

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The L10-FePt nanocrystalline phase is directly formed by rapidly quenching the (Fe1-xPtx)77-78Zr 2-5B17-20 (x = 0.45-0.50) alloy melt. The as-quenched alloys exhibit coercivity higher than 200 kA/m. The in situ X-ray diffractometry at high temperatures reveals that the quenched L10-FePt phase in the alloys is stable up to the melting temperature. The L10-FePt phase forms directly without allowing the formation of the disordered face-centered cubic phase during rapid solidification.

Original languageEnglish
Pages (from-to)429-434
Number of pages6
JournalScripta Materialia
Volume53
Issue number4
DOIs
Publication statusPublished - 2005 Aug
Externally publishedYes

Keywords

  • Iron-platinum alloy
  • Melt-spinning technique
  • Melting temperature
  • Order-disorder transformation temperature
  • Ordered L1 phase

ASJC Scopus subject areas

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

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