Improvement of the thermoplastic formability of Zr65Cu17.5Ni10Al7.5bulk metallic glass by minor addition of Erbium

Q. Hu, X. R. Zeng, Mingwang Fu, S. S. Chen, J. Jiang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

It is found the lower glass transition temperature of Zr65Er2 has an important contribution to the improvement of formability, which is contrary to the general understanding that the larger fragility and wider super-cooled liquid region (SCLR) are the major reasons for better thermoplastic formability. This finding is well explained by using the linear simplification of the SCLR in Angell plot. Zr65Er2 also has lower crystallization temperature and melting temperature, which is believed to be related to the formation of short-range ordering with lower transition energy rather than the composition shift to near eutectic. The above results help understand the effect of minor addition of rare-earth to the formability of Zr-based bulk metallic glasses.
Original languageEnglish
Pages (from-to)68-72
Number of pages5
JournalPhysica B: Condensed Matter
Volume502
DOIs
Publication statusPublished - 1 Dec 2016

Keywords

  • Angell plot
  • Bulk metallic glasses
  • Fragility
  • Glass transition temperature
  • Super-cooled liquid region
  • Thermoplastic formability

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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