Xiaoxu Huang

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Deformation twinning in crystals is a highly coherent inelastic shearing process that controls the mechanical behaviour of many materials, but its origin and spatio-temporal features are shrouded in mystery. Using micro-compression and in situ nano-compression experiments, here we find that the stress required for deformation twinning increases drastically(More)
We observe that a nanostructured metal can be hardened by annealing and softened when subsequently deformed, which is in contrast to the typical behavior of a metal. Microstructural investigation points to an effect of the structural scale on fundamental mechanisms of dislocation-dislocation and dislocation-interface reactions, such that heat treatment(More)
  • Bo Thesis, Jakobsen, +45 authors Dansk Resumé
  • 2006
The main goal of the study presented in this thesis was to perform in-situ investigations on deformation structures in plastically deformed polycrystalline copper at low degrees of tensile deformation (< 5%). Copper is taken as a model system for cell forming pure fcc metals. A novel synchrotron-radiation based technique High Angular Resolution 3DXRD has(More)
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