Abstract
Localized corrosion of stainless steel affects seriously the performance of these materials in service. In this paper, the design of experiment (DOE) is used to study the influence of temperature, pH and chloride concentration on the pitting and crevice corrosion of UNS S30403 stainless steel. DOE approach enables to reduce the number of tests (potentiodynamic polarization) necessary to study the effect of several parameters on the passivity breakdown potential. The use of DOE provided a regression equation that was analyzed by comparison with laboratory results. Among all these parameters, the temperature has the most significant effect on pitting corrosion resistance.
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