Ca-Mg-Zn bulk metallic glasses with strong glassforming ability synthesized under air atmosphere

E. S. Park, Do Hyang Kim

Research output: Contribution to journalArticle

Abstract

The effect of alloy composition on the glass forming ability (GFA) of the Ca-rich Ca-Mg-Zn alloys has been investigated. In a wide composition range of 10 % - 30 % Zn and 5 % - 25 % Mg bulk metallic glass (BMG) samples with the diameter larger than 1 mm are fabricated by conventional copper mold casting method and injection casting method in air atmosphere. Among the alloys investigated, the Ca65Mg15Zn20 alloy exhibits the highest GFA enabling to form BMG sample with the diameter of at least 15 mm. The σ parameter has better correlation with Dmax in the Ca-Mg-Zn alloys than previously suggested parameters such as ΔT X, Trg, K and γ parameters.

Original languageEnglish
Pages (from-to)687-690
Number of pages4
JournalJournal of Metastable and Nanocrystalline Materials
Volume24-25
DOIs
Publication statusPublished - 2005 Dec 1

Fingerprint

Metallic glass
metallic glasses
atmospheres
air
Air
Casting
Glass
glass
Chemical analysis
Copper
injection
copper

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)
  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

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abstract = "The effect of alloy composition on the glass forming ability (GFA) of the Ca-rich Ca-Mg-Zn alloys has been investigated. In a wide composition range of 10 {\%} - 30 {\%} Zn and 5 {\%} - 25 {\%} Mg bulk metallic glass (BMG) samples with the diameter larger than 1 mm are fabricated by conventional copper mold casting method and injection casting method in air atmosphere. Among the alloys investigated, the Ca65Mg15Zn20 alloy exhibits the highest GFA enabling to form BMG sample with the diameter of at least 15 mm. The σ parameter has better correlation with Dmax in the Ca-Mg-Zn alloys than previously suggested parameters such as ΔT X, Trg, K and γ parameters.",
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Ca-Mg-Zn bulk metallic glasses with strong glassforming ability synthesized under air atmosphere. / Park, E. S.; Kim, Do Hyang.

In: Journal of Metastable and Nanocrystalline Materials, Vol. 24-25, 01.12.2005, p. 687-690.

Research output: Contribution to journalArticle

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