By calculation of thermodynamics, analysis of crystal structure and study of TEM and eletron probe, it is first discovered that SiO_2 can be acted as one of the heterogeneous nuclei for lamellar intergrowth eutectic(austenite and cementite) crystallizing in modified as-cast medium manganese steel.

Further analysis shows:the mechanism of increased quantities of austenite dendrites is that silicon makes the eutectic coupled zone move to the right in the Fe-C phase diagra.

Evolution Mechanism of Al/AILi Eutectic Growth during Unidirectional Solidification;

The key topics on eutectic solidification are discussed on the basis of coupling effects between solute diffusion, surface tension and heat transfer as well as crystal growth behaviors, including regular eutectic growth, irregular eutectic growth, rapid eutectic growth and interface stability of eutectic growth.

The effect of thermosolutal convection on eutectic growth was studied during vertically upward directional solidification of binary hypoeuectic Al-Li alloys.