The Nanostructured Origin of Deformation Twinning Journal Articles uri icon

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  • We have revealed the fundamental embryonic structure of deformation twins using in situ mechanical testing of magnesium single crystals in a transmission electron microscope. This structure consists of an array of twin-related laths on the scale of several nanometers. A computational model demonstrates that this structure should be a generic feature at the incipient stage of deformation twinning when there are correlated nucleation events. Our results shed light on the origin of twinning-induced plasticity and transformation toughening, critical to the development of advanced structural alloys with high strength, ductility, and toughness.


  • Yu, Qian
  • Qi, Liang
  • Chen, Kai
  • Mishra, Raja
  • Li, Ju
  • Minor, Andrew M

publication date

  • February 8, 2012