Jorge Luiz Cardoso
Physics (General), Materials Science (General), Metals and Alloys Materials Science and Engineering Physics Materials Science Metals and Alloys 1 Hydrogen embrittlement and corrosion behaviors in metals Corrosion Behavior and Inhibition Material Properties and Failure Mechanisms Materials Chemistry

Bio

Jorge Luiz Cardoso is a materials scientist and engineer affiliated with the Department of Metallurgical and Materials Engineering at the Federal University of Ceará (Universidade Federal do Ceará) in Fortaleza, Brazil. He earned his PhD in Engineering and Materials Science from the same institution in 2016. His research focuses on the corrosion behavior of metallic materials, particularly austenitic stainless steels in aggressive environments such as oil field formation waters. With 48 published works and 297 citations, his contributions have been recognized with an h-index of 10 and an i10-index of 10. Dr. Cardoso also serves as a reviewer for several scientific journals, contributing to the advancement of materials science and engineering.

Educational Journey

Universidade Federal do Ceará

PhD in Eng and Materials Science • Eng and Materials Science

2016

Experience

0 - 0

Faculdade Farias Brito

Professor

2017 - 2017 • Civil Engineering

Editors Role

Reviewer

GJSFR

2024 - Present

Research

Evaluation of the Corrosion Behavior on Austenitic Stainless Steels in Artificial Oil Field Formation Water using Potentiodynamic and Potentiostatic Electrochemical Techniques

Article January 23, 2026

Objective: The main objective of this research was to evaluate the corrosion resistance of some austenitic and super austenitic stainless steel when immersed in an aqueous solution of artificial oil field formation water saturated with CO2 and also without CO2. With these two simulated situations, the pH effect of the solution on the corrosion resistance of the alloys was studied. Methods: Samples of austenitic and super austenitic stainless steels previously characterized by x-ray diffraction using synchrotron light were used in this research. Two electrochemical techniques, one potentiodynamic and the other potentiostatic were used to investigate the effect of the solution on the corrosion behavior of the samples. The linear polarization test was used to evaluate the CO2 corrosion resistance of the alloys in artificial oil field formation water. The potentiostatic technique (potential step) was used to assess the influence of the solution without CO2 on the corrosion resistance of the alloys, thus, varying the pH of the electrolyte. Scanning Electron Microscopy (SEM) was used to observe the type of corrosion on the surface of the samples. Results: The results indicated that the type of corrosion found on the surface of the alloys was pitting corrosion. The pH effect of the solution (artificial oil field formation water) influenced the pits’ shape. The conventional austenitic steels showed to have low corrosion resistance in chloride-containing environment. The super austenitic stainless steels presented a high corrosion resistance in the solution with and without CO2. No pits or micro pits were observed on their surfaces by SEM. Conclusion: From the results obtained, it was evident that the conventional austenitic stainless steels are not a good choice in severe environments like those found in the pre-salt region. The super austenitic stainless steels showed to be a good option in CO2-containing environments, mainly in aqueous solution with a high content of chloride.