Densification of gas atomized Ni-based metallic glassy powders by spark plasma sintering

Guoqiang Xie, Dmitri V. Louzguine-Luzgin, Song Li, Hisamichi Kimura, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Gas-atomized Ni525Nb10Zr15Ti 15Pt75 metallic glassy alloy powders were consolidated by a spark plasma sintering (SPS) process. The densification behavior during the SPS process as well as the structure, thermal stability and mechanical properties of the sintered specimens were investigated. The glassy alloy powders were densified rapidly when the temperature exceeded about 740 K. The density of the sintered specimens increased with an increase in sintering temperature. The specimens with full densification and no crystallization were obtained by the SPS process at a sintering temperature of 773 K with a loading pressure of 600 MPa. The sintered specimens exhibit high-strength and can meet large-size requirement.

Original languageEnglish
Pages (from-to)1273-1278
Number of pages6
JournalMaterials Transactions
Volume50
Issue number6
DOIs
Publication statusPublished - 2009 Jun

Keywords

  • Bulk metallic glass
  • Densification
  • Gas atomization
  • Microstructure
  • Spark plasma sintering

ASJC Scopus subject areas

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

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