Gd-Co-Al and Gd-Ni-Al bulk metallic glasses with high glass forming ability and good mechanical properties

Ding Chen, Akira Takeuchi, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

The glass forming ability of Gd-Co-Al and Gd-Al-Ni ternary alloy systems with a composition range of 50-70 at.% Gd and 0-40 at.% Al were investigated by copper mold casting. Bulk glassy alloys with composition of Gd60Co25Al15 and Gd60Ni15Al25 with the maximum diameters of 5 and 4 mm, respectively, were produced in the Gd-Al-Co and Gd-Al-Ni alloy systems The reduce glass transformation temperature (Tg/Tl) and the distance of supercooling region ΔTx are 0.6 and 45 K for the Gd60Co25Al15 and Gd60Ni15Al25 bulk metallic glasses, respectively. The compressive fracture strength σf and Young's modulus E of these two glassy alloys are 1250 MPa and 63 GPa for Gd60Co25Al15, 1300 MPa and 65 GPa for Gd60Ni15Al25 alloy, respectively. The Gd-Co-Al and Gd-Al-Ni bulk glassy alloys with high glass forming ability and good mechanical properties are promising for the future development as a new type function materials.

Original languageEnglish
Pages (from-to)226-230
Number of pages5
JournalMaterials Science and Engineering A
Volume457
Issue number1-2
DOIs
Publication statusPublished - 2007 May 25

Keywords

  • Amorphous materials
  • Bulk metallic glasses
  • Glass-forming ability
  • Mechanical properties

ASJC Scopus subject areas

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

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