Quasi-work-hardening at sites of shear band interactions in a Cu50Zr50 metallic glass

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

2 Scopus Citations
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Author(s)

  • D.P. Wang
  • A.D. Wang
  • Y.C. Hu
  • B.A. Sun
  • C.T. Liu

Detail(s)

Original languageEnglish
Article number128655
Journal / PublicationMaterials Letters
Volume281
Online published11 Sep 2020
Publication statusPublished - 15 Dec 2020

Abstract

Using a powerful method of contact-resonance atomic force microscope, we studied the elastic modulus at shear band (SB) interactions in a Cu50Zr50 metallic glass (MG). A quasi-work-hardening effect is observed: the interaction site is harder than the SB itself, but softer than the undeformed matrix. Therefore, the interaction site is not the weakest position during the deformation process of MGs. Large-scale molecular dynamics simulation suggests that this quasi-work-hardening effect is correlated to a locally configurational evolution of shear-resistant cluster. Our findings are useful for understanding the deformation mechanism of multi-SBs in MGs.

Research Area(s)

  • Amorphous materials, Elastic properties, Interaction, Shear band, Work-hardening

Citation Format(s)

Quasi-work-hardening at sites of shear band interactions in a Cu50Zr50 metallic glass. / Wang, D.P.; Wang, A.D.; Hu, Y.C.; Sun, B.A.; Liu, C.T.

In: Materials Letters, Vol. 281, 128655, 15.12.2020.

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