Preparation and thermal stability of Pd40.5Ni40.5Si x P19-x bulk metallic glasses

Yang Li, Yao Cen Wang, Ke Fu Yao

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

With the addition of Si to replace some P, Pd40.5Ni 40.5Si x P19-x (x=0, 2.5, 5, 9.5, 14, and 19 in atomic number fraction) bulk glassy samples with the diameter of about 5 mm were successfully prepared by use of flux treatment and water quenching technology. With the increase of Si content, the glass forming ability of Pd40.5Ni40.5Si x P19-x increases first for low Si content and then decreases for high Si content (Si≥9.5at%). The Pd40.5Ni40.5Si 5 P14 glassy alloy possesses the largest supercooled liquid region ΔT of 119 K, the largest reduced glass transition temperature of 0.621, and the largest γ parameter of 0.460, indicating that this glassy alloy possesses very large glass forming ability and very high thermal stability.

Original languageEnglish
Pages (from-to)204-207
Number of pages4
JournalInternational Journal of Minerals, Metallurgy and Materials
Volume17
Issue number2
DOIs
Publication statusPublished - 2010 Apr

Keywords

  • Bulk metallic glass
  • Flux method
  • Glass forming ability
  • Thermal stability
  • Water quenching

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Geochemistry and Petrology
  • Metals and Alloys
  • Materials Chemistry

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