Stability and phase transformations of icosahedral phase in a 41.5Zr41.5Ti17Ni alloy

Research output: Contribution to journalArticle

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Abstract

Phase stability and transformations of the icosahedral phase (I-phase) in a 41.5Zr41.5Ti17Ni alloy were investigated using melt-spun ribbons and arc-melted bulk samples. A perfect I-phase can be formed directly from liquid through the melt-spinning technique. The I-phase formed in the ribbon is thermodynamically stable and transforms to W-phase, a 1/1 rational approximant above 565 °C. Formation of the perfect I-phase during annealing treatment of the arc-melted sample is very sluggish. Various types of approximants exist as intermediate states for the transformation of crystalline phases to a perfect I-phase.

Original languageEnglish
Pages (from-to)892-897
Number of pages6
JournalJournal of Materials Research
Volume15
Issue number4
DOIs
Publication statusPublished - 2000 Jan 1

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Phase stability
Melt spinning
ribbons
phase transformations
arcs
Phase transitions
Annealing
Crystalline materials
melt spinning
Liquids
annealing
liquids

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "Phase stability and transformations of the icosahedral phase (I-phase) in a 41.5Zr41.5Ti17Ni alloy were investigated using melt-spun ribbons and arc-melted bulk samples. A perfect I-phase can be formed directly from liquid through the melt-spinning technique. The I-phase formed in the ribbon is thermodynamically stable and transforms to W-phase, a 1/1 rational approximant above 565 °C. Formation of the perfect I-phase during annealing treatment of the arc-melted sample is very sluggish. Various types of approximants exist as intermediate states for the transformation of crystalline phases to a perfect I-phase.",
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Stability and phase transformations of icosahedral phase in a 41.5Zr41.5Ti17Ni alloy. / Yi, S.; Kim, Do Hyang.

In: Journal of Materials Research, Vol. 15, No. 4, 01.01.2000, p. 892-897.

Research output: Contribution to journalArticle

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