Phase separation process preventing thermal embrittlement of a Zr-Cu-Fe-Al bulk metallic glass

D. V. Louzguine-Luzgin, J. Jiang, A. I. Bazlov, V. S. Zolotorevzky, H. Mao, Yu P. Ivanov, A. L. Greer

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The structural changes and mechanical properties of a Zr 63 Cu 22 Fe 5 Al 10 bulk metallic glass (BMG), and a Zr 63 Cu 27 Al 10 one made for comparison, were studied on annealing below the crystallization temperature. The phase composition of the samples was studied by conventional X-ray diffractometry and high-resolution transmission electron microscopy including the atomic-scale elemental mapping. The samples were mechanically tested in compression. The Zr 63 Cu 22 Fe 5 Al 10 bulk metallic glass shows a high strength and good deformability at room temperature both in the as-cast state and after prolonged structural relaxation below the crystallization temperature. The reasons for such behavior are discussed in the present work.

Original languageEnglish
Pages (from-to)31-36
Number of pages6
JournalScripta Materialia
Volume167
DOIs
Publication statusPublished - 2019 Jul 1

Keywords

  • Bulk metallic glass
  • Mechanical properties
  • Phase separation
  • Relaxation
  • Transmission electron microscopy

ASJC Scopus subject areas

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

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