Abstract
Both in situ observational and theoretical analyses were carried out for inclusion particle behavior on a 16Cr stainless steel melt surface by paying special attention to the phase classification of inclusions and to the differences in interaction due to the type of phase (solid, liquid, or complex). The interaction was attractive between pairs of particles of the same kind, such as between solid-solid, complex-complex, liquid-liquid, or solid-complex particles, but it was repulsive for pairs of particles of different kinds, such as between solid-liquid or complex-liquid particles. As a result, this reverse phenomenon leads to selective interaction among various inclusions. The origin of attraction or repulsion between inclusion particles is the capillary force. This capillary interaction is strongly influenced by the particle size and shape, and by the contact angle of a particle with steel melt; it is less influenced by the particle density and shape, and by the interfacial tension. In particular, the degree of attractive or repulsive force strongly depends on the contact angle of a particle. Thus, some chalcogen elements should strongly affect the interaction of particles.
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Nakajima, K., Mizoguchi, S. Capillary interaction between inclusion particles on the 16Cr stainless steel melt surface. Metall Mater Trans B 32, 629–641 (2001). https://doi.org/10.1007/s11663-001-0118-3
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DOI: https://doi.org/10.1007/s11663-001-0118-3