Texture Characteristics and Anisotropic Superplasticity of AZ61 Magnesium Alloy

Abstract

The texture evolution and mechanical anisotropy in an extruded AZ61 Mg alloy are examined. After warm extrusion, the alloy exhibits a refined grain structure and a strong basal texture. The tensile behaviors are examined in extruded specimens with the loading axis oriented at 0^°, 45^° and 90^° to the extrusion direction. The 45^° specimens exhibit lower yield stresses and higher ductility. The possible reasons for the mechanical anisotropy based on the Schmid factor calculations are analyzed.