Crystal–Glass High‐Entropy Nanocomposites with Near Theoretical Compressive Strength and Large Deformability

Abstract: High‐entropy alloys (HEAs) and metallic glasses (MGs) are two material classes based on the massive mixing of multiple‐principal elements. HEAs are single or multiphase crystalline solid solutions with high ductility. MGs with amorphous structure have superior strength but usually poor ductility. Here, the stacking fault energy in the high‐entropy nanotwinned crystalline phase and the glass‐forming‐ability in the MG phase of the same material are controlled, realizing a novel nanocomposite with near theoretical yield strength (G/24, where G is the shear modulus of a material) and homogeneous plastic strain above 45% in compression. The mutually compatible flow behavior of the MG phase and the dislocation flux in the crystals enable homogeneous plastic co‐deformation of the two regions. This crystal–glass high‐entropy nanocomposite design concept provides a new approach to developing advanced materials with an outstanding combination of strength and ductility.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Crystal–Glass High‐Entropy Nanocomposites with Near Theoretical Compressive Strength and Large Deformability ; volume:32 ; number:34 ; year:2020 ; extent:7
Advanced materials ; 32, Heft 34 (2020) (gesamt 7)

Creator
Wu, Ge
Balachandran, Shanoob
Gault, Baptiste
Xia, Wenzhen
Liu, Chang
Rao, Ziyuan
Wei, Ye
Liu, Shaofei
Lu, Jian
Herbig, Michael
Lu, Wenjun
Dehm, Gerhard
Li, Zhiming
Raabe, Dierk

DOI
10.1002/adma.202002619
URN
urn:nbn:de:101:1-2022061011364156906527
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:30 AM CEST

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Associated

  • Wu, Ge
  • Balachandran, Shanoob
  • Gault, Baptiste
  • Xia, Wenzhen
  • Liu, Chang
  • Rao, Ziyuan
  • Wei, Ye
  • Liu, Shaofei
  • Lu, Jian
  • Herbig, Michael
  • Lu, Wenjun
  • Dehm, Gerhard
  • Li, Zhiming
  • Raabe, Dierk

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