Evaluation of thermoplastic formability of Zr-based bulk metallic glasses and its correlation with characteristic temperature parameters

Q. Hu, Mingwang Fu, X. R. Zeng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

Thermoplastic formability (TPFA) is a key factor in fabrication of bulk metallic glass (BMG) components by thermoplastic forming (TPF) technology. In this paper, the softness in the entire super-cooled liquid region (SCLR) is used to evaluate the TPFA of 18 Be-free Zr-based BMGs and the reliability is verified by mould forming experiments. The correlations between softness and thermo-dynamic characteristic temperature parameters are well explained under the assumption of linear SCLR in Angel plot. A parameter constructed by thermo-dynamic and thermal-mechanical characteristic temperatures is proposed, representing the best correlation with softness. These results help understand the TPFA of BMGs well.
Original languageEnglish
Pages (from-to)326-330
Number of pages5
JournalJournal of Alloys and Compounds
Volume602
DOIs
Publication statusPublished - 25 Jul 2014

Keywords

  • Bulk metallic glass
  • Formability
  • Fragility
  • Super-cooled liquid
  • Thermoplastic forming

ASJC Scopus subject areas

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

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