Preparation of a Zr-based bulk glassy alloy foam

Takeshi Wada, Xinmin Wang, Hisamichi Kimura, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

A Zr48Cu36Al8Ag8 bulk metallic glass (BMG) containing spherical pores with 3.9% porosity was prepared by melting a Zr48Cu36Al8Ag8 powder under 1.0 MPa pressurized helium. Annealing treatment of the porous alloy in a supercooled liquid region causes expansion of the pores. Highly porous BMG with a cellular structure was prepared by sudden reduction of the helium pressure in the crucible before quenching. The porous alloys exhibited significant plasticity due to a high density of shear bands initiated from pores.

Original languageEnglish
Pages (from-to)1071-1074
Number of pages4
JournalScripta Materialia
Volume59
Issue number10
DOIs
Publication statusPublished - 2008 Nov

Keywords

  • Foaming
  • Metallic glass
  • Porous material
  • Shear bands

ASJC Scopus subject areas

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

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