Mechanism of Anomalous Grain Formation During Controlled Diffusion Solidification

Controlled diffusion solidification (CDS) is a promising casting process. It depends on mixing two precursor alloys that have different masses and temperatures. After the mixing, anomalous grains with many morphologies form in the CDS microstructure. The formation, solidification, and stability of the anomalous grains are investigated in the present study. The high impingement velocity between the liquid stream of an alloy (Alloy1) and the …