Evolution of dislocation density during compression of a Mg-Zn-Y alloy with long period stacking ordered structure

Abstract

An extruded Mg-Zn-Y alloy with long period stacking ordered (LPSO) structure was compressed in two different loading directions. The LPSO phase in the initial extruded material exhibited strong texture and elongated grain morphology which resulted in different dislocation densities and plastic behaviors during compression parallel and perpendicular to the extrusion direction.

Keywords

• Mg-Zn-Y alloy
• Long period stacking ordered (LPSO) structure
• Texture
• Compression
• Dislocation density
• Kinking