The electronic structure of grain boundaries in metals and alloys

We study the electronic structure of Ni with Σ5 (2 1 0) and TiNi with Σ5 (3 1 0) tilt grain boundaries using the full-potential linearized augmented plane wave (FLAPW) method. The calculated electron energy loss spectra, as well as X-ray absorption and emission spectra in nickel and its alloy are analyzed in dependence on composition and structure.