Per: Flávia WAGNER PINHEIRO (UENF), ELAINE CRISTINA PEREIRA (UENF), GUSTAVO DE AZEVEDO BARRETO GOMES (UENF)
Abstract:
Corrosion is defined as a set of phenomena of progressive deterioration of materials, mainly metallic materials, as a result of chemical or electrochemical reactions between the material and the environment. Corrosion represents undesirable harmful changes suffered by the material, such as wear, chemical variations or structural changes, making it in many cases unsuitable for use. In order to monitor the corrosive process, corrosion coupons are installed at strategic points in pipes and main equipment, so that they can provide information on corrosion rates. In general, corrosion monitoring companies acquire coupons from different types of suppliers, and as noted in previous work, little, if any, information is available on the type of processing during manufacture, chemical composition, microstructure, size of grain, the type of heat treatment among other parameters and how much, can change the reliability of the results obtained. The general objective of this work was to evaluate the influence of different types of heat treatments on uniform corrosion rates in AISI 1010 steel mass loss coupons, after they have been subjected to the corrosion loop test