“…Effect of La addition on semi-solid microstructure evolution of Mg-7Zn magnesium alloy billets or slurries, such as magnetohydrodynamic stirring (MHD), recrystallization and partial melting (RAP), strain-induced melt activated (SIMA), and semi-solid isothermal heat treatment (SSIT), etc [5][6][7] . The SIMA process mainly includes two steps: deformation of as-cast billets and subsequent partial remelting.…”