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. Ironbased 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 ironbased 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 2 research in the future is prospected at last.
The composition and micropores characteristics of carbon bricks have significant influence on their corrosion resistance to molten iron. In this study, the corrosion of an ultra-microporous carbon brick (MG carbon brick) in molten iron was studied by the rotating cylinder method. The results indicated that the corrosion resistance to molten iron of the MG carbon brick was better than that of the NMA carbon brick, especially under the conditions of low carbon, high sulfur and low titanium molten iron. The nano-scale micropores and the addition of Al2O3 were the main factors which made the MG carbon brick more resistant to corrosion by molten iron than the NMA carbon brick. In terms of chemical composition, the MG carbon brick contained 8.74 wt.% Al2O3 and 6.91 wt.% SiC, while their content in the NMA carbon brick was very little. The corrosion resistance to molten iron of carbon bricks can be enhanced by adding Al2O3. But it cannot be ignored that the thermal stability of the carbon brick would deteriorate due to the addition of Al2O3. Moreover, because of the better properties of the MG carbon brick in terms of average pore size and ≤1 μm pore volume, the MG carbon brick had better permeation resistance to molten iron than the NMA carbon brick.
The evolution of slag phases and interaction between sinter and acid pellet in cohesive zone were systematically investigated, as well as the relationship between microstructure, thermal calculation and S&M behaviour. The results indicate that both 'component interaction' and 'formation interaction' will be hindered before the formation of liquid phases. The effect of network iron at the interface on the interaction is more apparent than that of the relative position of materials. The main slag phases detected at the interface are FeO-CaO-SiO 2 , FeO-CaO-MgO-SiO 2 , FeO-CaO-Al 2 O 3 -SiO 2 and FeO-CaO-MgO-Al 2 O 3 -SiO 2 . The relationship between interaction without load and S&M behaviour has been revealed through breaking down the complex process into the reaction between P-P, S-S and P-S. The main area that affects the pressure drop in cohesive zone is the melting region. Mixed burden is beneficial to enhance the interaction and promote the melting behaviour.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.