Formation and thermal stability of Cu-Zr-Al-Er bulk metallic glasses with high glass-forming ability

Research output: Contribution to journalArticlepeer-review

Abstract

The formation and thermal stabilities of Cu46.25Zr46.25-xAl7.5Erx, (x=0 to 8) bulk metallic glasses (BMGs) were investigated. The addition of a small amount of Er (2at%) for replacing Zr effectively improves the glass-forming ability of Cu46.25Zr46.25Al7.5 alloy, and the glassy rod with a diameter of at least 12 mm can be formed. The glass transition temperature (Tg), temperature interval of supercooled liquid region ΔTx (= Tx - Tg, and reduced glass transition temperature Trg (=Tg/T1) of Cu46.25Zr44.25Al7.5Er2 glassy alloy are 699 K, 62 K and 0.607, respectively.

Original languageEnglish
Pages (from-to)36-38
Number of pages3
JournalJournal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)
Volume14
Issue numberSUPPL. 1
DOIs
StatePublished - Jun 2007

Keywords

  • Cu-based alloy
  • Erbium
  • bulk metallic glass
  • glass transition temperature
  • glass-forming ability

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