Review on the Viscosity of Iron-based Melts in Metallurgical Process

Abstract

Low-carbon metallurgy is a critical issue for the world in the 21st century and improving production efficiency is one of the main ways to resolve this problem. Iron-based alloy runs through the whole process of metallurgy, and the viscosity properties of melt is of great significance on the process of reaction, transportation and solidification casting, which is one of the constraints on production efficiency. The research progress of the viscosity of iron-based melt is summarized from the aspects of measurement methods, influencing factors and prediction models in this paper. It is briefly concluded that the oscillating method is the most widely used measurement method of iron-based melts and pointed out that the interaction between the components and the formation of inclusions will have a significant effect on the viscosity of iron-based melts. And the three semi-empirical models derived from the Andrade equation can be applied to the viscosity prediction of molten iron as the pre-revised basic equations with greater precision. Then the direction of iron-based melt viscosity research in the future is prospected at last.