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Presentation
Refractory corrosion by slag under an applied voltage
Faculty of Engineering - Papers (Archive)
  • Brian J Monaghan, University of Wollongong
  • Sharon Nightingale, University of Wollongong
  • Q Dong, University of Wollongong
  • Michael Funcik, University of Wollongong
RIS ID
15205
Publication Date
1-1-2006
Publication Details

Monaghan, BJ, Nightingale, SA, Dong, Q & Funcik, M, Refractory corrosion by slag under an applied voltage, Materials Science & Technology 2006, p 29-38, USA: AIST.

Abstract

The effect of an applied voltage on the dissolution rate of MgO refractory in two steelmaking type slags has been investigated. It was found that the MgO corrosion in a CaO-SiO2-Al2O3 based slag proved insensitive to an applied voltage over the voltage range –0.5 to 0.3V. The corrosion rate of the dense MgO in a CaO-SiO2-Fe2O3-FeO-MgO slag showed a maximum corrosion rate at –0.45V. This effect has been explained by considering the consequences of an applied voltage on the rate of Marangoni flow at the slag-refractory-gas interface and in turn, the flow effect on the rate of the mass transfer controlled MgO dissolution reaction.

Disciplines
Citation Information
Brian J Monaghan, Sharon Nightingale, Q Dong and Michael Funcik. "Refractory corrosion by slag under an applied voltage" (2006) p. 29 - 38
Available at: http://works.bepress.com/bmonaghan/13/