Thermal characterization of Cu60ZrxTi40-x metallic glasses (x=15, 20, 22, 25, 30)

A. Concustell, M. Zielinska, A. Révész, L. Varga, S. Suriñach, M. D. Baró

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The crystallization behavior, the thermal stability and the microhardness of Cu60ZrxTi40-x amorphous alloys (x=15, 20, 22, 25, 30) prepared by melt-spinning have been studied by means of differential scanning calorimetry (DSC), differential thermal analysis (DTA), X-ray diffraction (XRD) and microhardness tests. DSC analysis have confirmed the existence of glass transition, followed by a supercooled liquid region in all the compositions. However, depending on the Zr content, different crystallization behavior has been observed. The apparent activation energies of the crystallization processes have been determined and the obtained values indicate high thermal stability for all the alloys. XRD-patterns of the as-quenched samples showed a broad symmetric halo typical of a fully amorphous structure. Independently of the composition, after the first crystallization stage the XRD patterns present a structure similar to that of an amorphous one. But the final developed microstructure depends on the composition of the alloys. The addition of Zr has not shown significant differences in microhardness of the amorphous alloys, although they have exhibited good mechanical properties.

Original languageEnglish
Pages (from-to)1063-1067
Number of pages5
JournalIntermetallics
Volume12
Issue number10-11 SPEC. ISS.
DOIs
Publication statusPublished - Oct 2004

Fingerprint

Metallic glass
Crystallization
Microhardness
Amorphous alloys
X ray diffraction
Diffraction patterns
Differential scanning calorimetry
Thermodynamic stability
Chemical analysis
Melt spinning
Differential thermal analysis
Glass transition
Activation energy
Mechanical properties
Microstructure
Hot Temperature
Liquids

Keywords

  • B. Glasses, metallic
  • B. Thermal stability
  • F. Calorimetry
  • F. Diffraction (electron, neutron and X-ray)

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Thermal characterization of Cu60ZrxTi40-x metallic glasses (x=15, 20, 22, 25, 30). / Concustell, A.; Zielinska, M.; Révész, A.; Varga, L.; Suriñach, S.; Baró, M. D.

In: Intermetallics, Vol. 12, No. 10-11 SPEC. ISS., 10.2004, p. 1063-1067.

Research output: Contribution to journalArticle

Concustell, A, Zielinska, M, Révész, A, Varga, L, Suriñach, S & Baró, MD 2004, 'Thermal characterization of Cu60ZrxTi40-x metallic glasses (x=15, 20, 22, 25, 30)', Intermetallics, vol. 12, no. 10-11 SPEC. ISS., pp. 1063-1067. https://doi.org/10.1016/j.intermet.2004.04.023
Concustell, A. ; Zielinska, M. ; Révész, A. ; Varga, L. ; Suriñach, S. ; Baró, M. D. / Thermal characterization of Cu60ZrxTi40-x metallic glasses (x=15, 20, 22, 25, 30). In: Intermetallics. 2004 ; Vol. 12, No. 10-11 SPEC. ISS. pp. 1063-1067.
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