Micro-electrochemical techniques to study the localized corrosion in Al-Cu-Li alloys joined by friction stir welding (FSW)

• Grant number: 19/11427-1
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: October 01, 2019
• End date: September 30, 2020
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal Investigator: Isolda Costa
• Grantee: Rejane Maria Pereira da Silva
• Supervisor: Ricardo Manuel Souto Suárez
• Host Institution: Instituto de Pesquisas Energéticas e Nucleares (IPEN). Secretaria de Desenvolvimento Econômico (São Paulo - Estado). São Paulo , SP, Brazil
• Institution abroad: Universidad de La Laguna (ULL), Spain
• Associated to the scholarship: 18/06880-6 - Use of Localized Electrochemical Techniques for the Study of Corrosion of of High Strength Aluminum Alloys Joined by Friction (FSW)., BP.PD

Abstract

This project aims to study the localized corrosion of Al-Cu-Li alloys with high mechanical resistance, aeronautical grade, joined by FSW by means of micro-electrochemical techniques with high spatial resolution, such as the Scanning Electrochemical Microscopy (SECM) in different operation modes and by using ion-selective microelectrodes (ISME). This will allow identifying localized attacks and the formation of galvanic coupling, and studying the effects of microstructural changes resulting from friction stir welding process (FSW) on the corrosion susceptibility of the different zones affected by welding. (AU)

Scientific publications

(4)

(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)

DA SILVA, REJANE MARIA P.; IZQUIERDO, JAVIER; MILAGRE, MARIANA X.; BETANCOR-ABREU, ABENCHARA MARIA; DE OLIVEIRA, LEANDRO A.; ANTUNES, RENATO A.; SOUTO, RICARDO M.; COSTA, ISOLDA. On the local corrosion behavior of coupled welded zones of the 2098-T351 Al-Cu-Li alloy produced by Friction Stir Welding (FSW): An amperometric and potentiometric microelectrochemical investigation. Electrochimica Acta, v. 373, MAR 20 2021. (19/11427-1, 13/13235-6, 18/06880-6)

DA SILVA, REJANE M. P.; IZQUIERDO, JAVIER; MILAGRE, MARIANA X.; BETANCOR-ABREU, ABENCHARA M.; COSTA, ISOLDA; SOUTO, RICARDO M.. Use of Amperometric and Potentiometric Probes in Scanning Electrochemical Microscopy for the Spatially-Resolved Monitoring of Severe Localized Corrosion Sites on Aluminum Alloy 2098-T351. SENSORS, v. 21, n. 4, FEB 2021. (13/13235-6, 18/06880-6, 19/11427-1)

DA SILVA, REJANE MARIA P.; IZQUIERDO, JAVIER; MILAGRE, MARIANA X.; ARAUJO, JOAO VICTOR DE S.; ANTUNES, RENATO A.; SOUTO, RICARDO M.; COSTA, ISOLDA. Electrochemical characterization of alloy segregation in the near-surface deformed layer of welded zones of an Al-Cu-Li alloy using scanning electrochemical microscopy. Electrochimica Acta, v. 427, p. 7-pg., 2022-07-20. (13/13235-6, 18/06880-6, 19/11427-1)

DA SILVA, REJANE MARIA P.; MILAGRE, MARIANA X.; IZQUIERDO, JAVIER; BETANCOR-ABREU, ABENCHARA MARIA; DE OLIVEIRA, LEANDRO A.; ARAUJO, JOAO VICTOR DE S.; ANTUNES, RENATO A.; SOUTO, RICARDO M.; COSTA, ISOLDA. Surface finishing effects on the corrosion behavior and electrochemical activity of 2098-T351 aluminum alloy investigated using scanning microelectrochemical techniques. MATERIALS CHARACTERIZATION, v. 191, p. 12-pg., 2022-07-18. (13/13235-6, 19/11427-1, 18/06880-6)