The grain boundary mobility tensor

  title={The grain boundary mobility tensor},
  author={Kongtao Chen and Jian Han and Xiaoqing Pan and David J. Srolovitz},
  journal={Proceedings of the National Academy of Sciences},
  pages={4533 - 4538}
Significance Defects and microstructures have a profound impact on material strength and ductility. Microstructure engineering can enhance/trade-off between these properties. One of the key parameters that dictates microstructure evolution is grain-boundary mobility. We demonstrate the fundamental nature of the mobility, reconciling a wide range of observations in a consistent model. We argue that the mobility is, in general, a tensor (classically, it is a scalar) and determine all of its… Expand
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