Abstract
Magnesium (Mg) alloys with long-period stacking ordered (LPSO) phase (LPSO-type Mg alloys) have attracted considerable attention because of much higher strength compared with the conventional Mg alloys. The strength of LPSO-type Mg alloys is drastically improved due to metal forming processes such as extrusion and rolling. Consequently, as same to the conventional wrought Mg alloys, deformation behavior becomes anisotropic because the strong crystallographic texture developed during the forming processes. To reduce anisotropy in wrought LPSO-type Mg alloys with the aim of wide range of applications, the process optimization based on crystal plasticity simulation is one possible approach. In this study, a constitutive model for cast LPSO-type Mg alloys is developed based on experimental observation.
