In today's landscape—characterized by the pursuit of automotive lightweighting and the high integration of electronic products—semi-solid forming technology for magnesium alloys is gradually displacing traditional full-liquid die casting, thanks to its advantages such as lower forming temperatures, minimal shrinkage, and a dense microstructure. However, the semi-solid process entails a complex interplay of solid-liquid two-phase flow, rendering traditional non-destructive testing methods increasingly inadequate for meeting the demands of qualit