Diseño y construcción de un banco de pruebas para análisis de corrosión en los aceros utilizados por Sertecpet S.A. en la industria del petróleo y gas.

Abstract

This work focuses on the design and construction of a test bench for corrosion analysis of different types of steel used in the oil and gas industry. To build this machine, a similar equipment such as the rotating cylinder electrode (RCE) was used as a reference. The design process was carried out under the concurrent design parameters. Once the design was completed, the test bench was built according to the calculations and drawings, in which an AISI 4340 steel was subjected to corrosion to analyze its behavior. To carry out this experiment, 6 machined specimens are used, for which 3 are without thermochemical treatment, while the other 3 have a nitrided thermochemical treatment. This is carried out under a constant CO2 supply, constant fluid temperature of 30 °C (80 °F) and to generate a turbulent flow the engine revolutions are varied at 800 rpm, 1200 rpm and 1800 rpm. The exposure time of the specimens immersed in the salt solution fluid is 168 hours for each set of specimens.