Miscibility gap in Cu-Zr-Ag alloy system and its effect on the structure and plasticity of metallic glass

Jin Ju Lee, Kyoung Won Park, Do Hyang Kim, Eric Fleury

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In the present study, we show that the addition of Ag, an element having a positive enthalpy of mixing with Cu in the liquid state, enables the simultaneous enhancement of the glass forming ability and the plasticity in Cu-Zr-Ag bulk metallic glasses (BMGs). Rods of 4 mm diameter could be prepared with a fully amorphous structure and values of plastic strain up to 18% were measured under a compression mode for compositions around Cu 42.5Zr 47.5Ag 10. The possible role of Ag in the change of the atomic structure and the enhancement of the plastic strain in the ternary Cu-Zr-Ag BMGs is discussed based on analyses from transmission electron microscopy and EXAFS (extended X-ray absorption fine structure).

Original languageEnglish
Pages (from-to)930-936
Number of pages7
JournalJournal of Korean Institute of Metals and Materials
Volume49
Issue number12
DOIs
Publication statusPublished - 2011 Dec 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Modelling and Simulation
  • Surfaces, Coatings and Films
  • Metals and Alloys

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