Comparing Five and Lower-Dimensional Grain Boundary Character and Energy Distributions in Copper: Experiment and Molecular Statics Simulation

The misorientation of 515 grain boundaries has been determined using electron backscatter diffraction data from an 18 μm thick copper foil with columnar structure and a preferential {110} surface orientation. energy the was dihedral angles in vicinity boundary thermal grooves. experimental vs. angle shows deep minima for low-angle small corresponding to Σ3 Σ9 boundaries. Only fraction coincidence site lattice demonstrate increased occurrence frequency (compared random orientation distribution) low energy. In parallel, subset 400 symmetrical tilt calculated molecular statics simulations. There is good agreement between experiment modeling.