Crystallization in Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk metallic glass under pressure

Jianzhong Jiang, T.J. Zhou, Helge Kildahl Rasmussen, U. Kuhn, J. Eckert, C. Lathe

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Abstract

The effect of pressure on the crystallization behavior of the bulk metallic glass-forming Zr41.2Ti13.8Cu12.5Ni10Be22.5 alloy with a wide supercooled liquid region has been investigated by in situ high-pressure and high-temperature x-ray powder diffraction measurements using synchrotron radiation. In the pressure range from 0 to 3 GPa, the crystallization temperature increases with pressure having a slope of 19 K/GPa, which can be explained by the suppression of atomic mobility. This observation is opposite to the results of W.H. Wang, D.W. He, D.Q. Zhao, and Y.S. Yao [Appl. Phys. Lett. 75, 2770 (1999)], reporting a decrease of the crystallization temperature under pressure in a pressure range of 0-6 GPa for the bulk glass Zr41Ti14Cu12.5Ni9Be22.5C1 alloy. Compressibility with a volume reduction of approximately 22% at room temperature does not induce crystallization in the Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk glass alloy. This indicates that the densification effect induced by pressure in the pressure range investigated plays a minor role in the crystallization behavior of this bulk glass alloy. The different crystallization behavior of the carbon-free and the carbon-containing glassy alloys has been critically assessed. (C) 2000 American Institute of Physics.
Original languageEnglish
JournalApplied Physics Letters
Volume77
Issue number22
Pages (from-to)3553-3555
ISSN0003-6951
DOIs
Publication statusPublished - 2000

Bibliographical note

Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Keywords

  • MELTS
  • AMORPHOUS-ALLOYS
  • NI
  • PHASE-SEPARATION
  • CU
  • UNDERCOOLED ZR41.2TI13.8CU12.5NI10.0BE22.5
  • LIQUID
  • LEVITATION
  • ZR41TI14CU12.5NI10BE22.5
  • DECOMPOSITION

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