Effect of Admixtures of Surface-Active Elements in Fe – C – Si Alloys Under Rapid Solidification of Melt on the Quality of Structural Articles

Resumo

Computer and experimental studies of the effect of admixtures of Te and H₂ surface-active elements (s.a.e.) on the kinetics of nucleation of crystallization centers and phase growth under accelerated crystallization of eutectic cast iron are performed. It is shown that under quenching cooling with decelerated diffusion processes the admixtures of s.a.e. in the melt play the role of initiators of diffusion redistribution of elements in formation and growth of new phase fragments affecting the structure and properties of the formed material.