Mutual interaction of shear bands in metallic glasses

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

18 Scopus Citations
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Author(s)

  • D. P. Wang
  • B. A. Sun
  • W. H. Wang

Detail(s)

Original languageEnglish
Pages (from-to)48-53
Journal / PublicationIntermetallics
Volume85
Publication statusPublished - 1 Jun 2017

Abstract

Shear banding is the main plastic deformation mode in metallic glasses. Even though there are many researches focused on the initiation and propagation of shear bands, the interaction among them has not been systematically studied. Using an atomic force microscope, we investigated the mutual interaction of shear bands at the surface of Cu50Zr50 metallic glass ribbons at the nanoscale. At the sites of the interaction, the propagation direction of one shear band can be changed by the pre-existing one, and the offset is the vector sum of the two bands. Under external stress, one shear band can be decomposed into several tiny bands and more materials could be taken into the deformation zones. Therefore, more energy can be dissipated and the deformation could be more homogeneous for the mutual interaction process. These results are useful for a mechanistic understanding of the evolution and suppression of shear band propagations, as well as the design of metallic glasses with improved plasticity.

Research Area(s)

  • Atomic force microscope, Interaction, Metallic glasses, Shear band

Citation Format(s)

Mutual interaction of shear bands in metallic glasses. / Wang, D. P.; Sun, B. A.; Niu, X. R.; Yang, Y.; Wang, W. H.; Liu, C. T.

In: Intermetallics, Vol. 85, 01.06.2017, p. 48-53.

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