Enhanced glass forming ability and plasticity of a Ni-free Zr-based bulk metallic glass

Z. Liu, Kang Cheung Chan, L. Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

34 Citations (Scopus)

Abstract

The effect of Ag addition on the glass forming ability (GFA) and mechanical properties of (Zr0.62Cu0.23Fe0.05Al0.10)100-xAgx(x = 0, 1, 3, 5, 7) alloys were investigated by X-ray diffractometry, differential scanning calorimetry and compression testing. Their GFA and plasticity are found to increase simultaneously with increasing Ag content up to 3 at.%, but beyond this range, they both decrease. The (Zr0.62Cu0.23Fe0.05Al0.10)97Ag3alloy exhibits the highest GFA and largest plasticity, with a critical diameter of 10 mm and a fracture plastic strain of 5.2%. The reasons for the enhanced GFA and plasticity are discussed by considering the positive heat of mixing between Ag, Cu and Fe. The Ni-free (Zr0.62Cu0.23Fe0.05Al0.10)97Ag3alloy with high GFA, reasonably good plasticity and a low Young's modulus of approximate 68 GPa is a promising candidate for biomedical applications.
Original languageEnglish
Pages (from-to)152-156
Number of pages5
JournalJournal of Alloys and Compounds
Volume487
Issue number1-2
DOIs
Publication statusPublished - 13 Nov 2009

Keywords

  • Bulk metallic glass
  • Glass forming ability
  • Heat of mixing
  • Plasticity

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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