Grain boundary shear coupling is not a grain boundary property

  title={Grain boundary shear coupling is not a grain boundary property},
  author={Kongtao Chen and Jian Han and S. Thomas and D. Srolovitz},
  journal={Acta Materialia},
Abstract Shear coupling implies that all grain boundary (GB) migration necessarily creates mechanical stresses/strains and is a key component to the evolution of all polycrystalline microstructures. We present MD simulation data and theoretical analyses that demonstrate the GB shear coupling is not an intrinsic GB property, but rather strongly depends on the type and magnitude of the driving force for migration and temperature. We resolve this apparent paradox by proposing a microscopic theory… Expand

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