An apparatus is described for studying the effect of heat transfer on the cathodic polarisation of steel in flowing saline solutions.
The effect of heat transfer on the diffusion-limited current for reduction of oxygen in 3·2% sodium chloride solution could be accounted for in terms of the effect of temperature at the metal/solution interface on the diffusion coefficient of oxygen.
In sea water, the combined effect of cathodic polarisation and heat transfer enhanced the deposition of calcareous deposits on steel. Some implications of calcareous deposition on cathodic polarisation of steel are discussed.
