Atomic-scale investigation of interface-facilitated deformation twinning in severely deformed Ag-Cu nanolamellar composites

  title={Atomic-scale investigation of interface-facilitated deformation twinning in severely deformed Ag-Cu nanolamellar composites},
  author={Xianghai An and Suming Zhu and Cao Yang and Megumi Kawasaki and Xiaozhou Liao and Simon P. Ringer and Jian Feng Nie and Terence G. Langdon and Yuntian Zhu},
  journal={Applied Physics Letters},
We report an atomic-scale investigation of interface-facilitated deformation twinning behaviour in Ag-Cu nanolamellar composites. Profuse twinning activities in Ag supply partial dislocations to directly transmit across the Ag-Cu lamellar interface that promotes deformation twinning in the neighbouring Cu lamellae although the interface is severely deformed. The trans-interface twin bands change the local structure at the interface. Our analysis suggests that the orientation relationship and… 

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