Thermal stability and instrumented indentation in a Mg60Cu30Y10 bulk metallic glass

Z. Kovács, A. Castellero, A. L. Greer, J. Lendvai, M. Baricco

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The crystallisation and mechanical properties of the light alloy, Mg60Cu30Y10 bulk metallic glass (BMG) have been investigated by differential scanning calorimetry and instrumented indentation. Generally, the low-temperature plasticity of BMGs can be improved by partial devitrification to give an ultra-fine crystal structure in the amorphous matrix. From the indentation tests, increases in hardness and elastic modulus were observed after both the first and second stages of crystallisation. Plastic instabilities have been observed in the instrumented-indentation loading curves, even for samples with a significant crystallised fraction.

Original languageEnglish
Pages (from-to)1012-1017
Number of pages6
JournalMaterials Science and Engineering A
Volume387-389
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - Dec 15 2004

Fingerprint

Metallic glass
metallic glasses
indentation
Indentation
Thermodynamic stability
thermal stability
crystallization
Crystallization
light alloys
plastic properties
Plasticity
Differential scanning calorimetry
modulus of elasticity
heat measurement
hardness
plastics
Crystal structure
Elastic moduli
Hardness
mechanical properties

Keywords

  • Bulk metallic glasses
  • Instrumented indentation
  • Mg-Cu-Y
  • Serrated flow
  • Shear bands

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Thermal stability and instrumented indentation in a Mg60Cu30Y10 bulk metallic glass. / Kovács, Z.; Castellero, A.; Greer, A. L.; Lendvai, J.; Baricco, M.

In: Materials Science and Engineering A, Vol. 387-389, No. 1-2 SPEC. ISS., 15.12.2004, p. 1012-1017.

Research output: Contribution to journalArticle

Kovács, Z. ; Castellero, A. ; Greer, A. L. ; Lendvai, J. ; Baricco, M. / Thermal stability and instrumented indentation in a Mg60Cu30Y10 bulk metallic glass. In: Materials Science and Engineering A. 2004 ; Vol. 387-389, No. 1-2 SPEC. ISS. pp. 1012-1017.
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