Nature Communications (Aug 2022)

The origin of jerky dislocation motion in high-entropy alloys

  • Daniel Utt,
  • Subin Lee,
  • Yaolong Xing,
  • Hyejin Jeong,
  • Alexander Stukowski,
  • Sang Ho Oh,
  • Gerhard Dehm,
  • Karsten Albe

DOI
https://doi.org/10.1038/s41467-022-32134-1
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 11

Abstract

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Dislocations in high-entropy alloys encounter pinning during glide resulting in jerky motion. Here the authors demonstrate that the density of high local Peierls force is proportional to the critical stress required for their glide and mobility.