Deformation induced columnar grain rotation in nanotwinned metals

Yu-Jin Li, Chia-Wei Hsu, Yi-Hsin Ting, Nien-Ti Tsou, Yu-Chieh Lo, Wen-Wei Wu, K. N. Tu, Chih Chen*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

A significant grain rotation in <111>-oriented nanotwinned Cu film under tensile test at room temperature is reported. After rotation, the dislocation network in low angle tilt-type boundaries increases the strain energy, which provides the driving force for recrystallization in a subsequent annealing, resulting in the formation of millimeter size grains.
Original languageEnglish
Article number140045
JournalMaterials Science and Engineering A
Volume797
Online published6 Aug 2020
DOIs
Publication statusPublished - 21 Oct 2020
Externally publishedYes

Research Keywords

  • Grain boundary
  • Grain growth
  • Grain rotation
  • Nanotwinned Cu

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