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Comparative internal friction study of bulk and ribbon glassy Zr52.5Ti5Cu17.9Ni14.6Al10

Authors
Journal
Scripta Materialia
1359-6462
Publisher
Elsevier
Publication Date
Volume
49
Issue
3
Identifiers
DOI: 10.1016/s1359-6462(03)00212-4
Keywords
  • Bulk Metallic Glasses
  • Internal Friction
  • Elastic Modulus
  • Structural Relaxation

Abstract

Abstract The results of comparative internal friction (IF) investigation of a Zr-based metallic glass prepared in the bulk and ribbon forms are presented. It is shown that absolute values and temperature alterations of the IF and normalized modulus during heating of bulk and ribbon samples are fairly similar. This fact indicates that change of the quenching rate by three to four orders of magnitude either does not affect the amount of the free volume frozen in or the relaxation centres responsible for the relaxation behavior are not connected with the free volume. The possible consequences of this observation are discussed.

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