Atomic-scale heterogeneity in large-plasticity Cu-doped metallic glasses

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

1 Scopus Citations
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Author(s)

  • C.C. Yuan
  • Z.W. Lv
  • C.M. Pang
  • S. Lan
  • L.G. Wang
  • H.B. Yu
  • J.H. Luan
  • W. W. Zhu
  • G. L. Zhang
  • B.L. Shen

Detail(s)

Original languageEnglish
Pages (from-to)517-522
Journal / PublicationJournal of Alloys and Compounds
Volume798
Early online date28 May 2019
Publication statusPublished - 25 Aug 2019

Abstract

By using nanoindentation techniques combined with transmission electron microscope, wide-/small-angle X-ray scattering, and three-dimensional atom probe tomography, the sub-nanometer- to nanometer-length-scale structural heterogeneity due to the precipitation of Co(Fe)-rich clusters was observed in [(Co0.7Fe0.3)0.68B0.219Si0.051Nb0.05]100-xCux(x = 0.5)metallic glasses. Such short-range ordered structure promotes energy dissipation during deformation via regulating intrinsic elastic constants and hardness at the mesoscale, which contributes to the improved compressive plasticity of Cu-doped (Fe, Co)-based metallic glasses. Our work provides new evidence on atomic-scale heterogeneity in Cu-doped metallic glasses from the aspects of topological orders and microscopic mechanical responses.

Research Area(s)

  • Deformation and plasticity, Disordered structures, Elastic moduli, Metallic glasses, X-ray scattering

Citation Format(s)

Atomic-scale heterogeneity in large-plasticity Cu-doped metallic glasses. / Yuan, C.C.; Lv, Z.W.; Pang, C.M.; Wu, X.L.; Lan, S.; Lu, C.Y.; Wang, L.G.; Yu, H.B.; Luan, J.H.; Zhu, W. W.; Zhang, G. L.; Liu, Q.; Wang, Xun-Li; Shen, B.L.

In: Journal of Alloys and Compounds, Vol. 798, 25.08.2019, p. 517-522.

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