Bulk metallic glass formation in Ni-Zr-Nb-Al alloy systems

J. H. Na, W. T. Kim, D. H. Kim, S. Yi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Ni-based metallic glasses containing no metalloids are developed in Ni-Zr-Nb-Al alloy system. A partial replacement of Zr with Nb in Ni-Zr-Al alloys significantly enhances the glass-forming ability (GFA) and enlarges the undercooled liquid region during continuous heating of glassy ribbons. A quaternary Ni-Zr-Nb-Al metallic glasses exhibit large undercooled liquid region (>50 K), indicating high glass-forming ability of the alloy. The glass transition and crystallization temperatures of a quaternary Ni 61Zr28Nb7Al4 alloy are 848 and 898 K, respectively, exhibiting a wide undercooled liquid region of 50 K. A complete Ni61Zr28Nb7Al4 glassy rod (φ1 mm) can be prepared by copper mold injection casting.

Original languageEnglish
Pages (from-to)778-782
Number of pages5
JournalMaterials Letters
Volume58
Issue number5
DOIs
Publication statusPublished - 2004 Feb 1

All Science Journal Classification (ASJC) codes

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

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