Microstructure evolution and properties of Mg-3Sn-1Mn (wt%) alloy strip processed by semisolid rheo-rolling

► An innovative semisolid rheo-rolling process of Mg-Sn alloy. ► Fine spherical or rosette primary grain formation provided by rheo-rolling process. ► More homogeneous microstructure. ► Giving evidently better mechanical properties than previous studies respectively.