... macrostructure freckle segregations concentration gradient Macrosegregation refers to composition heterogeneities that occur on the scale of the casting. Once formed during solidification, it is almost impossible to reduce or remove due to the large size range or solute diffusion, and thus creates...

... of forced convection driven by an intermittent traveling magnetic field on the solidification process. Several aspects were investigated, namely, thermal field, macrostructure, and finally segregation behavior, as well as morphology. The effect of the both thermal and solutal stratification on the intensity...