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

J. H. Na, W. T. Kim, Do Hyang Kim, S. Yi

Research output: Contribution to journalArticle

14 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

Fingerprint

Metallic glass
metallic glasses
Liquids
liquids
Metalloids
Glass
glass
metalloids
Crystallization
glass transition temperature
ribbons
Copper
Glass transition
Casting
rods
crystallization
injection
Heating
copper
heating

All Science Journal Classification (ASJC) codes

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

Cite this

Na, J. H. ; Kim, W. T. ; Kim, Do Hyang ; Yi, S. / Bulk metallic glass formation in Ni-Zr-Nb-Al alloy systems. In: Materials Letters. 2004 ; Vol. 58, No. 5. pp. 778-782.
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Bulk metallic glass formation in Ni-Zr-Nb-Al alloy systems. / Na, J. H.; Kim, W. T.; Kim, Do Hyang; Yi, S.

In: Materials Letters, Vol. 58, No. 5, 01.02.2004, p. 778-782.

Research output: Contribution to journalArticle

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AU - Na, J. H.

AU - Kim, W. T.

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AB - 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.

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