Structural changes in Zr-based bulk metallic glasses deformed by high pressure torsion

A. Révész, Péter Henits, Z. Kovács

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Zr44Ti11Cu10Ni10Be25 and Zr57Ti5Cu20Al10Ni8 bulk metallic glass disks have been subjected to severe plastic deformation by high pressure torsion. Structural changes occurred during torsion straining were detected by high intensity synchrotron X-ray diffraction, modulated thermal analysis and hardness measurements. The samples show no evidence of nanocrystallization, however, they posses atomic bond length change in the amorphous state. Simultaneously, a change in the heat capacity of the deformed state is detected which is preserved above the glass transition in the supercooled liquid range.

Original languageEnglish
Pages (from-to)338-340
Number of pages3
JournalJournal of Alloys and Compounds
Volume495
Issue number2
DOIs
Publication statusPublished - Apr 16 2010

Fingerprint

Metallic glass
Torsional stress
Nanocrystallization
Bond length
Synchrotrons
Thermoanalysis
Specific heat
Glass transition
Plastic deformation
Hardness
X ray diffraction
Liquids

Keywords

  • Calorimetry
  • Mechanical properties
  • Metallic glasses
  • Synchrotron radiation
  • X-ray diffraction

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

Cite this

Structural changes in Zr-based bulk metallic glasses deformed by high pressure torsion. / Révész, A.; Henits, Péter; Kovács, Z.

In: Journal of Alloys and Compounds, Vol. 495, No. 2, 16.04.2010, p. 338-340.

Research output: Contribution to journalArticle

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