Controlled normal/shear loading and shear fracture in bulk metallic glasses

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

8 Scopus Citations
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Author(s)

  • C. H. Hsueh
  • H. Bei
  • C. T. Liu
  • E. P. George
  • P. F. Becher

Detail(s)

Original languageEnglish
Pages (from-to)802-810
Journal / PublicationIntermetallics
Volume17
Issue number10
Publication statusPublished - Oct 2009
Externally publishedYes

Abstract

Limited plasticity inhibits the engineering applications of bulk metallic glasses (BMGs), which often deform by the formation of localized shear bands. Overcoming the brittleness of BMGs necessitates advances in our understanding of the mechanisms of shear band initiation and propagation. Up to now, a major hurdle has been the ability to control the generation of shear bands and the associated fracture (e.g., by conventional uniaxial loading). Here we demonstrate a unique loading fixture that allows one not only to control the locations of shear band formation and shear fracture but also to alter the ratio of the normal to shear stress on the fracture plane. The capability of altering the stress ratio allows one to systematically examine how the normal stress affects shear fracture of BMGs. While some preliminary results with limited data have been presented in a prior publication, a comprehensive description of the unique test fixture is described here. © 2009 Elsevier Ltd. All rights reserved.

Research Area(s)

  • B. Fracture stress, B. Glasses, metallic

Citation Format(s)

Controlled normal/shear loading and shear fracture in bulk metallic glasses. / Hsueh, C. H.; Bei, H.; Liu, C. T.; George, E. P.; Becher, P. F.

In: Intermetallics, Vol. 17, No. 10, 10.2009, p. 802-810.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review