Corrosion study of API 5L steels in saline solutions saturated with hydrogen sulfide

• Grant number: 17/11361-5
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2017
• End date: September 30, 2019
• Field of knowledge: Engineering - Materials and Metallurgical Engineering
• Principal Investigator: Eduardo Norberto Codaro
• Grantee: Eduardo Norberto Codaro
• Host Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil
• Associated researchers: Eduardo Gonçalves Ciapina ; Heloisa Andréa Acciari ; Roberto Zenhei Nakazato

Abstract

It is intended to characterize low-carbon steels corrosion, API 5L X65MS and API 5L X52MS in NACE 177-A, 177-B and 284-B saline solutions by electrochemical and non-electrochemical tests, as well as analysis of composition, morphology and microstructure of surfaces. The objective is to contribute to the understanding of the causes of corrosion in oil and gas pipes and the mechanisms of corrosion involved in steels, which can lead to film formation or nucleation and propagation of cracks in sour environments. It is expected that the results allow to establish a correlation between pH values and corrosion parameters associated with interfacial phenomena (weight loss, potential and corrosion current density, resistance to polarization) and others related mainly to the ferritic microstructure of steels (number and size of cracks and permeation current density) in an attempt to determine what combination of factors favors each type of corrosion. (AU)

Scientific publications

(6)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

MARIANA CRISTINA DE OLIVEIRA; ALEXANDRE PEREIRA DE LIMA; RODRIGO MONZON FIGUEREDO; HELOISA ANDRÉA ACCIARI; EDUARDO NORBERTO CODARO. UM ESTUDO TERMODINÂMICO DA CORROSÃO DOS AÇOS CARBONO PELO SULFETO DE HIDROGÊNIO - EXPLORANDO CONCEITOS DE EQUILÍBRIO QUÍMICO. Química Nova, v. 41, n. 5, p. 594-599, 2018-05-00. (17/11361-5)

FIORAVANTE, IGOR A.; NUNES, RONALDO S.; ACCIARI, HELOISA A.; CODARO, EDUARDO N.. Films Formed on Carbon Steel in Sweet Environments - A Review. Journal of the Brazilian Chemical Society, v. 30, n. 7, p. 1341-1349, JUL 2019. (17/11361-5)

MACEDO, JONAS FERNANDO; FIORAVANTE, IGOR ALEXANDRE; NAKAZATO, ROBERTO ZENHEI; ACCIARI, HELOISA ANDREA; CODARO, EDUARDO NORBERTO. Corrosion Behavior of API 5L X70 Carbon Steels in Hydrogen Sulfide Environments. IRANIAN JOURNAL OF MATERIALS SCIENCE AND ENGINEERING, v. 18, n. 1, p. 118-127, MAR 2021. (17/11361-5)

DE OLIVEIRA, MARIANA CRISTINA; FIGUEREDO, RODRIGO MONZON; ACCIARI, HELOISA ANDREA; CODARO, EDUARDO NORBERTO. Corrosion behavior of API 5L X65 steel subject to plastic deformation. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, v. 7, n. 3, p. 5-pg., 2018-07-01. (17/11361-5)

FIGUEREDO, RODRIGO MONZON; DE OLIVEIRA, MARIANA CRISTINA; DE PAULA, LEANDRO JESUS; ACCIARI, HELOISA ANDREA; CODARO, EDUARDO NORBERTO. A Comparative Study of Hydrogen-Induced Cracking Resistances of API 5L B and X52MS Carbon Steels. INTERNATIONAL JOURNAL OF CORROSION, 2018. (17/11361-5)

FIGUEREDO, RODRIGO MONZON; DE OLIVEIRA, MARIANA CRISTINA; DE PAULA, LEANDRO JESUS; ACCIARI, HELOISA ANDREA; CODARO, EDUARDO NORBERTO. A Comparative Study of Hydrogen-Induced Cracking Resistances of API 5L B and X52MS Carbon Steels. INTERNATIONAL JOURNAL OF CORROSION, v. 2018, p. 7-pg., 2018-01-01. (17/11361-5)