SILVA, JEFFERSONREIS, SUELLENMAIA, ELOA L.TERADA, MAYSABUGARIN, ALINEBERBEL, LARISSAANDRADE, RAYANNE A.GUILHERME, LUIS H.COSTA, ISOLDA2022-08-242022-08-24SILVA, JEFFERSON; REIS, SUELLEN; MAIA, ELOA L.; TERADA, MAYSA; BUGARIN, ALINE; BERBEL, LARISSA; ANDRADE, RAYANNE A.; GUILHERME, LUIS H.; COSTA, ISOLDA. Effect of pulsed and spray multipass MAG welding on the corrosion resistance of 316L stainless steel. In: INTERNATIONAL CORROSION CONGRESS, 21st; INTERNATIONAL CORROSION MEETING, 8th, July 20-23, 2021, Online. <b>Anais...</b> Rio de Janeiro, RJ: Associação Brasileira de Corrosão - ABRACO, 2021. Disponível em: http://repositorio.ipen.br/handle/123456789/33241.http://repositorio.ipen.br/handle/123456789/33241In this study, the corrosion resistance of the ASTM A-240 TP 316L stainless steel submitted to a multipass metal active gas (MAG) welding was investigated. The stainless steel was MAG welded in two modes of metal transfer: pulsed and spray with protective gas (98% Argon and 2% Oxygen). The microstructure and corrosion resistance of base metal (BM) and fusion-zone (FZ) were characterized by scanning electron microscopy (SEM), ferritescope test, and anodic polarization tests. All zones were passive in the test solution (NaCl 1.0 mol L-1) followed by passive film breakdown with a potential increase. The BM showed a higher tendency to film breakdown comparatively to the FZ. The FZ in the spray process presented a passive film with higher breakdown resistance than the pulsed FZ.openAccessTexto completo de evento0000-0002-4987-3334https://orcid.org/0000-0002-4987-3334