Devitrification behavior and glass-forming ability of Cu-Zr-Ag alloys

Dmitri V. Louzguine-Luzgin, Guoqiang Xie, Wei Zhang, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

This paper presents an influence of Ag addition on the glass-forming ability and devitrification behavior of Cu-Zr glassy alloys on heating. The crystallization kinetics and structure changes in Cu45Zr45Ag10 and Cu35Zr45Ag20 glassy alloys on heating were studied by X-ray diffraction, transmission electron microscopy, differential scanning and isothermal calorimetry methods. Based on the results obtained one can assume that the improvement of the glass-forming ability of the Cu-Zr alloys by the addition of Ag is connected with a particular crystallization mechanism and a higher reduced glass-transition temperature of the Cu45Zr45Ag10 ternary alloy compared to the binary Cu55Zr45 counterpart. As observed in the present work crystallization of the Cu-Zr-Ag alloys is found to cause embitterment of the samples and should be avoided as these alloys are considered to be used as structural materials. The Cu35Zr45Ag20 alloy shows possible submicron-scale phase separation upon annealing.

Original languageEnglish
Pages (from-to)146-152
Number of pages7
JournalMaterials Science and Engineering A
Volume465
Issue number1-2
DOIs
Publication statusPublished - 2007 Sep 15

Keywords

  • Amorphous phase
  • Calorimetry
  • Crystallization
  • Metallic glasses
  • Transmission electron microscopy
  • X-ray diffraction

ASJC Scopus subject areas

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

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