Electrochemical Corrosion Using Distilled H2O and HCl Solutions In Structural Steels 1020, 1045 and 1060 Guilherme Ianusckiewicz Marques, Wilson Roberto de Oliveira Santos, Aldo Ramos Santos, Katia Cristina Fernandes

Abstract

It was carried out in a metallurgy laboratory, a twenty-day experiment, in which eighteen specimens of three types of steels, 1020, 1045 and 1060, immersed in distilled H2O and HCl solutions, were analyzed to evaluate the electrochemical corrosion rate. The process began with the preparation of the steel billets that were cut, finished and polished and underwent nital attack and subsequently dried. Solutions were prepared using a pH meter. The specimens were placed in pots and three specimens were added for each solution, typed with the letters O for 1020, A for 1040 and for steel 1060 the letter P. The contour structures were analyzed under a microscope. grain and heavy. After twenty days, the specimens were removed from the solutions that passed through the ultrasonic cleaning machine and weighed again. Tables and graphs were elaborated with the results that showed that the HCl solution had higher corrosion rate due to the acidity of the pH when compared to the distilled H2O solution.