Structural relaxation, glass-forming ability and mechanical properties of Mg-Cu-Ni-Gd alloys

Guangyin Yuan, Kenji Amiya, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

The structural relaxation and glass-forming ability (GFA) of Mg-Cu-Gd-based glassy alloys and the effect of Ni addition on the glass-forming ability, structural relaxation and mechanical properties were studied by thermal analysis, X-ray diffractometry (XRD) and transmission electron microscopy (TEM). The medium-range order (MRO) zones of about 1-2 nm size were observed in the Mg65Cu25Gd10 glassy alloy after structural relaxation caused by annealing for 180 s at 305 K. The structural relaxation resistance increased with decreasing Cu content, although the GFA also decreased in Mg-Cu-Gd-based alloys. Appropriate substitution of Cu by Ni in Mg 75Cu15Gd10-based alloy not only improved the glass-forming ability and mechanical properties, but also increased the stability against structural relaxation.

Original languageEnglish
Pages (from-to)729-735
Number of pages7
JournalJournal of Non-Crystalline Solids
Volume351
Issue number8-9
DOIs
Publication statusPublished - 2005 Apr 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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