Transmission Line Modeling Applied to Hot Corrosion of Fe-40at.pctAl in Molten LiCl–KCl Academic Article uri icon

abstract

  • © 2015, The Minerals, Metals & Materials Society and ASM International. The effect of Cu and Li additions to the intermetallic alloy Fe-40at.pctAl on the corrosion performance in an LiCl-55wtpctKCl molten eutectic salt was studied by means of electrochemical impedance spectroscopy, transmission line modeling (TLM), and cathodic polarization. The tests were done at 723 K, 773 K, and 823 K (450 °C, 500 °C, and 550 °C), for 60 and 720 minutes. The element additions could improve the corrosion resistance of Fe-40at.pctAl in molten LiCl–KCl, while TLM could characterize and quantify the interfacial processes in hot corrosion. The polarization curves helped to establish the possible cathodic reactions in the experimental conditions.

author list (cited authors)

  • Barraza-Fierro, J. I., Espinosa-Medina, M. A., & Castaneda, H.

citation count

  • 3

publication date

  • August 2015