Application of mathematical tools and techniques in monitoring and predicting stainless steel corrosion in river water media environment

Chukwuemeka Peter Ukpaka and Philip Eruni Uku

Abstract

The application of mathematical tools and techniques were applied in the process of monitoring and predicting the corrosion rate and weight loss of stainless steel in salt and fresh water environment of Niger Delta region in Nigeria. The
functional parameters used in the mathematical demonstration to compute the corrosion rate and weight loss were obtained from the experimental data and these functional coefficients were fitted into the power and quadratic model. The
experimental corrosion rate and weight loss value was compared with the theoretical computed value for both model of quadratic and power concept approach and the result obtained demonstrate a good match indicating the reliability of the concepts on monitoring and predicting the process. In this case, the corrosion rate and weight loss was experienced to be more rapid in the salt water environment than the fresh water environment; this can be attributed to the characteristics of the salt water concentration of the physicochemical parameters that is a major contributing factor for increase in corrosion rate and weight of metals in aqueous media.