Nature Communications (Aug 2019)

Strengthening in multi-principal element alloys with local-chemical-order roughened dislocation pathways

  • Qing-Jie Li,
  • Howard Sheng,
  • Evan Ma

DOI
https://doi.org/10.1038/s41467-019-11464-7
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 11

Abstract

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Multi-principal-element alloys have been assumed to have the configurational entropy of an ideal solution. Here, the authors use atomistic simulations to show that instead NiCoCr exhibits local chemical order, raising the activation barriers of dislocation activities to elevate mechanical strength.