The present investigation shows the influence of the microstructure resulting from the heat treatment termed betatization of an aluminum bronze containing Cu-9Al-3Ag alloy, in as-cast and heat-treated samples immersed in 0.5M NaCl-containing media with all experiments conducted at 25 ºC. The said treatment corresponds to heat saturation conditions in the phase region where the beta phase predominates in the microstructure. The corrosion behavior was recorded through using cyclic voltammetry and potentiodynamic polarization techniques, supplemented by OCP recordings. The results obtained through the polarization curves showed that at more positive potentials the current density decreases considerably, which is attributed to the formation of corrosion products on the surface of the working electrode.

Slag carry-over during the draining of molten steel from a teeming ladle is numerically studied here. Two-phase isothermal transient 3D Computational Fluid Dynamics simulations were employed to simulate the draining process. Two nozzle diameters, two nozzle positions and three slag heights were considered. From mass balances, the slag carry-over in terms of mass flow rate was obtained for each of the above variables. Besides, the draining times of the teeming ladle were estimated from theoretical considerations and CDF simulations, and compared.

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