Pronounced grain boundary network evolution in nanocrystalline Cu subjected to large cyclic strains

  title={Pronounced grain boundary network evolution in nanocrystalline Cu subjected to large cyclic strains},
  author={David B. Bober and T. Lagrange and Mukul Kumar and T. Rupert},
  journal={arXiv: Materials Science},
The grain boundary network of nanocrystalline Cu foils was modified by the systematic application of cyclic loadings and elevated temperatures having a range of magnitudes. Most broadly, the changes to the boundary network were directly correlated to the applied temperature and accumulated strain, including a 300% increase in the twin length fraction. By independently varying each treatment variable, a matrix of grain boundary statistics was built to check the plausibility of hypothesized… Expand
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