Author:Tshilombo, KDate:Feb 2010Nozzle blocking was eliminated by calcium-treated liquid steel through changing the chemical and phase composition of alumina inclusions in aluminium-killed steel. Three different methods were applied to determine the composition of inclusions ...Read more
Author:Pistorius, PC; Presoly, P; Tshilombo, GDate:Aug 2009Steel was sampled after calcium treatment at an industrial steel plant, and the inclusions identified by energy-dispersive X-ray microanalysis (EDX) on polished sections of the samples analysing the samples in a scanning electron microscope. ...Read more
Author:Pistorius, CP; Presoly, P; Tshilombo, KGDate:Aug 2006Calcium treatment of alumina inclusions, to convert the alumina to molten or partially molten calcium aluminates, is a well-established treatment for steel, to improve the castability of aluminium-killed steel. However, the role of magnesium ...Read more