KLUMPP, RAFAEL E.AKBARZADEH, SAJJADARAUJO, JOAO V. de S.GONON, MAURICE F.DELAUNOIS, FABIENNECOSTA, ISOLDAOLIVIER, MARIE-GEORGES2024-12-112024-12-112024KLUMPP, RAFAEL E.; AKBARZADEH, SAJJAD; ARAUJO, JOAO V. de S.; GONON, MAURICE F.; DELAUNOIS, FABIENNE; COSTA, ISOLDA; OLIVIER, MARIE-GEORGES. Correlating corrosion modes with the microstructure of the 2XXX series alloys: a comparative approach. <b>Surface and Interface Analysis</b>, v. 56, n. 9, p. 643-653, 2024. DOI: <a href="https://dx.doi.org/10.1002/sia.7321">10.1002/sia.7321</a>. Disponível em: https://repositorio.ipen.br/handle/123456789/48754.0142-2421https://repositorio.ipen.br/handle/123456789/48754In this study, the localized corrosion susceptibility of AA2050-T84, AA2198-T851, and AA2024-T3 alloys was compared by immersion in three test solutions, specifically sodium chloride solution (3.5% NaCl), EXCO solution, according to ASTM G34-18, and a solution for intergranular corrosion (IGC) test recommended by ASTM G110-15 and via scanning vibrating electrode technique (SVET). The results showed higher susceptibility of AA2050-T84 alloy to all types of corrosion tested compared to the other studied 2XXX series alloys. Corrosion penetration was deeper in the AA2050-T84 due to its microstructural characteristics as a difference in the micrometric Cu-Rich intermetallic particle distribution on the surface and related to the distribution of the T1 (Al2CuLi) phase.643-653openAccessArtigo de periódico95610.1002/sia.7321https://orcid.org/0000-0002-4987-333413.844.40