The effect of the temperature change rate on determination of the critical pitting temperature of stainless steels

Abstract

Results have been presented of investigations on the effect of the temperature change rate on the critical temperature of pitting corrosion. Investigations of 316L stainless steel have been conducted by cyclic thermometry. An increase has been stated of the critical pitting temperature with increase of the temperature change rate. The dependence of the pitting critical temperature is linear in character for all investigated temperature change rates. Values of the critical temperature of pitting corrosion for stationary conditions (E−E_S=0) were obtained by using the extrapolation procedure. The critical pitting temperature obtained by extrapolation practically does not depend on the temperature change rate in the investigated range and is equal to 336.9 K (63.9°C).

Citation

Krakowiak, S. and Darowicki, K. (2002), "The effect of the temperature change rate on determination of the critical pitting temperature of stainless steels", Anti-Corrosion Methods and Materials, Vol. 49 No. 2, pp. 105-110. https://doi.org/10.1108/00035590210419344