Corrosion costs in preventive and corrective maintenance in equipment and facilities in industry

the purpose of this research was to determine corrosion costs according to the corrosion types and the controls applied associated to corrective and preventive maintenance in an electricity plant and a processing food in venezuela, through the software sacic designed for this application. initially, it was done the classification of work orders associated with maintenance work to determine those related to corrosion, for one year of operation of the plant. there were chosen 224 working orders which corresponded to the electrical plant industry and 335 to the food industry. according to the type of corrosion, the electricity plant had a cost of 366,229,194.58 bolivares, being the costs related to uniform and erosion corrosion the most relevant, while for the food processing plant the costs were 521,612,453 bolivares, generated by uniform corrosion. in relation to the costs generated by corrosion control, they were 527.105.626,76 bolivares in the electricity plant and 742.766.105 bolivares in the food processing plant, which represented 10% and 5% of the annual maintaining cost, respectively. this research permitted to segregate the corrosion costs and generate a procedure for estimate the cost according to corrosion type and control, applicable to any industry.