Tunable stacking fault energies by tailoring local chemical order in CrCoNi medium-entropy alloys

  title={Tunable stacking fault energies by tailoring local chemical order in CrCoNi medium-entropy alloys},
  author={Jun Ding and Qin Yu and Mark Asta and Robert O. Ritchie},
  journal={Proceedings of the National Academy of Sciences},
  pages={8919 - 8924}
  • J. DingQin Yu R. Ritchie
  • Published 3 June 2018
  • Materials Science
  • Proceedings of the National Academy of Sciences
Significance Our work has revealed the nature of local chemical order and has established its significant relationship to the intrinsic and extrinsic stacking fault energy in CrCoNi medium-entropy solid-solution alloys, whose combination of strength, ductility, and toughness properties approaches the best on record. These findings highlight the general need to discern how critical the role of local chemical ordering is in dictating the mechanical of properties of medium- and high-entropy alloys… 

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