Shear band formation and ductility of metallic glasses

A. V. Sergueeva, N. A. Mara, J. D. Kuntz, D. J. Branagan, A. K. Mukherjee

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

Variations in microstructure and chemical compositions of the metallic glasses found in the literature, as well as an overall lack of experimental data on inhomogeneous behavior of metallic glass make the evaluation of the effects of shear band/fracture behavior on mechanical properties of metallic glasses difficult. Investigating the effect of strain localization alone on inhomogeneous flow seems to be a first step in approaching this problem. Mechanical behavior of metallic glasses at room temperature and various strain rates in tension and compression was investigated. Formation of multiple shear bands was observed at high strain rates. An increase in strain rate leads to enhanced ductility in tension, whereas, the ductility of the material in compression decreases with increasing strain rate. Differences in deformation processes in tension and compression were compared.

Original languageEnglish (US)
Pages (from-to)219-223
Number of pages5
JournalMaterials Science and Engineering A
Volume383
Issue number2
DOIs
StatePublished - Oct 15 2004

Bibliographical note

Funding Information:
The authors would like to acknowledge the Office for Naval Research for its financial support under grant ONR Grant N00014-03-1-0149 and the material support from Idaho National Engineering Laboratory.

Keywords

  • Deformation
  • Metallic glasses
  • Shear band formation

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