| Title | Predicting Protective Film Behaviour on Low Carbon Steel |
|---|---|
| Authors | Inman, M.E., Sharp, R.M., Wright, G.A. and Wilson, P.T. |
| Year | 1993 |
| Conference | New Zealand Geothermal Workshop |
| Keywords | |
| Abstract | Magnetiteand duplex iron sulphide-magnetitefilms have been grown in a autoclave at 1 and analysed using Electrochemical Impedance Spectroscopy and equivalent circuit theory. Corrosion rates obtained from the impedance data comparedwell with those derived from coupon weight losses. However, itwas apparent that the mechanismof corrosionand passivefilm growthwas differentfor each system. Therefore, the considerable body of knowledge on magnetite formation in high temperature aqueous environments, and the protection of carbon steel by that film, cannot be applied to the duplex iron sulphide-magnetite system. |