Formation and properties of P-free Pd-based metallic glasses with high glass-forming ability

Wei Zhang, Hai Guo, Yanhui Li, Yingmin Wang, Hao Wang, Mingwei Chen, Shinichi Yamaura

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

New P-free Pd-based bulk metallic glasses (BMGs) with high glass-forming ability (GFA) were synthesized in Pd-Si-Ag-Cu alloy system, based on a binary Pd83Si17 alloy. Combined addition of Ag and Cu greatly enhances the stability of supercooled liquid and GFA. The Pd-based BMGs have large supercooled liquid region of 66-77 K. The best GFA was obtained for Pd75Si15Ag3Cu7 alloy, and the glassy rods with diameters of up to 10 mm were fabricated by copper mold casting method without fluxing treatment. These BMGs also exhibit low viscosity of ∼2 × 107 Pa s in the supercooled liquid state, excellent thermoplastic formability, high compressive yield strength of ∼1626 MPa, and large plastic strain of ∼0.063.

Original languageEnglish
Pages (from-to)310-313
Number of pages4
JournalJournal of Alloys and Compounds
Volume617
DOIs
Publication statusPublished - 2014 Dec 25

Keywords

  • Manufacturability
  • Mechanical property
  • Metallic glasses
  • Pd alloys
  • Thermoplastic formability

ASJC Scopus subject areas

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

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