Formation of new Ti-based metallic glassy alloys

Chaoli Ma, Satoru Ishihara, Hideki Soejima, Nobuyuki Nishiyama, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

Abstract

New Ti-based bulk glassy alloys were synthesized in a multi-component alloy system of Ti-Cu-Ni-Al-Zr-Si-B. In a wide composition range of Ti > 50 at%, single-phase glass rods with diameters up to 2.5 mm were prepared using a conventional copper-mold casting method. The new Ti-based glassy alloys show compressive strength above 1900MPa. The plastic (serrated) strain under compression is lager than 0.01. The new Ti-based glass phase exhibits relatively high thermal stability with a large supercooled liquid region (>T x) above 50 K. These glassy alloys, however, exhibit complex crystallization behavior characterized by multiple exothermic-reaction peaks on their differential scanning calorimeter (DSC) curves. The glass-forming ability of this complex system is discussed on the basis of knowledge available for bulk glass formation.

Original languageEnglish
Pages (from-to)1802-1806
Number of pages5
JournalMaterials Transactions
Volume45
Issue number5
DOIs
Publication statusPublished - 2004 May

Keywords

  • Glass-forming ability
  • Metallic glass
  • Thermal stability
  • Titanium

ASJC Scopus subject areas

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

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