Local Structural Analysis around Solute-Element in Annealed Mg<sub>99.2</sub>Zn<sub>0.2</sub>Y<sub>0.6</sub> Alloy Using X-ray Fluorescence Holography

X-ray fluorescence holography was applied to dilute Mg99.2Zn0.2Y0.6 alloy annealed at 520°C for 5 h obtain atomic images around Zn atom. In spite of the extremely low concentration solute-element, clear hologram patterns were obtained. The reconstructed revealed that atom in this mainly occupy hcp Mg site. This finding is consistent with transmission electron microscope image, where fcc-type stacking faults are hardly observed. These results contrast previous report and Y form short-range-ordered solute clusters fault Mg–Zn–Y alloy. effect heat treatment on arrangement solute-elements discussed relation previously reported mechanical properties.