On the structure and role of β′F in β1 precipitation in Mg-Nd alloys KU Leuven
© 2017 Acta Materialia Inc. The crystal structure and atomic coordinates of β F′ in aged samples of a Mg–3wt.%Nd alloy are examined using high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) and the first-principles density functional theory (DFT). It is found that the lattice parameters and the atomic positions in the orthorhombic β F′ unit cell deviate from the atomic model that has been generally accepted. The ...