Effects of outside energetic treatment of metal melts on the process of crystallization, analyzed by AE-method and melting plateau stabilization

The effect of exterior pulsing fields on the metal melts melting and crystallization processes are presented. Vibration treatment causes the formation of metal with grain structure of small size that corresponds to more homogeneous melt before the crystallization front. Satisfactory conformity between recorded features of AE signals and level of homogeneity of melt before crystallization takes is observed. The viscosity measurements confirm the inhomogeneities in the melt before solidification. The effect of the vibration treatment on the improvement of melting plateau stability is studied.