ARAUJO, JOAO V. de S.MILAGRE, MARIANA X.KLUMPP, RAFAEL E.AYUSSO, VICTOR H.DONATUS, UYIMECOSTA, ISOLDA2022-06-092022-06-092022ARAUJO, JOAO V. de S.; MILAGRE, MARIANA X.; KLUMPP, RAFAEL E.; AYUSSO, VICTOR H.; DONATUS, UYIME; COSTA, ISOLDA. TSA anodising voltage effects on the near-surface coarse intermetallic particles in the AA2024-T3 and AA2198-T8 alloys. <b>Corrosion Engineering, Science and Technology</b>, v. 57, n. 4, p. 380-396, 2022. DOI: <a href="https://dx.doi.org/10.1080/1478422X.2022.2071666">10.1080/1478422X.2022.2071666</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/33112.1478-422Xhttp://repositorio.ipen.br/handle/123456789/33112In this study, the behaviour of the micrometric particles of the AA2198-T8 alloy during anodising at various voltages and the effect of anodising voltage on the anodised surface morphology have been investigated in a tartaric-sulfuric acid anodising solution. The results were compared with that of the AA2024-T3 alloy. For the AA2198-T8 alloy, partial dissolution of these particles occurred at 0, 3 and 4 V. Besides, for potentials above 5 V, there is a preferential dissolution of the intermetallic particles. For the AA2024-T3 alloy, the results indicated a total dissolution of the micrometric particles at 0 V and a partial dissolution at 3 V, whereas above 4 V total dissolution occurred. Between 1 and 2 V, no dissolution was observed for both alloys. The preferential dissolution of the micrometric particles resulted in defects in the anodic film and cavities on the anodised surfaces.380-396openAccessaluminium alloysintermetallic compoundsparticle sizeanodizationsulfuric acidtartaric acidArtigo de periódico45710.1080/1478422X.2022.20716660000-0002-4987-3334https://orcid.org/0000-0002-4987-33343548.33