Study the effect of temperature and corrosion behavior of rail steel

Abstract

Rail steel is considered one of the most important minerals used in industrial applications. The direct effect on the corrosion behaviour of the steel is heat treatment because of galvanic corrosion, which builds up between its microscopic phases. Four methods of treating carbon steel have been used thermally which are hardening, normalizing, annealing, and tempering. Used salt water as a corrosive medium in the marine environment. The steel contains chemical compounds to show their effect on corrosion. To compare the results with the corrosion rate and weight loss. It was seen that as the carbon content increased, the corrosion durability of the carbon steel decreased. Similar replications of the samples were exposed to annealing heat treatment by heating them and then letting them cool in an isolated furnace. The test results have shown degradation of the sample's corrosion resistance after the heat treatment. Corroded samples exhibited increasing surface area roughness, indicating corrosion defects.