Galvanic and asymmetry effects on the local electrochemical behavior of the 2098-T351 alloy welded by friction stir welding
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2020
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Journal of Materials Science & Technology
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Scanning electrochemical microscopy (SECM) and scanning vibrating electrode technique (SVET) were
used to investigate the electrochemical behaviour of the top surface of the 2098-T351 alloy welded by
friction stir welding (FSW). The SVET technique was efficient in identifying the cathodic and anodic weld
regions. The welding joint (WJ), which comprises the thermomechanically affected zone (TMAZ) and
the stir zone (SZ), was cathodic relative to the heated affected zone (HAZ) and the base metal (BM). The
reactivities of the welding joint at the advancing side (AS) and the retreating side (RS) were analyzed
and compared using SECM technique in the competition mode by monitoring the dissolved oxygen as a
redox mediator in 0.005 mol L−1 NaCl solution. The RS was more electrochemically active than the AS,
and these results were correlated with the microstructural features of the welded alloy.
Como referenciar
MILAGRE, MARIANA X.; DONATUS, UYIME; MOGILI, NAGA V.; SILVA, REJANE M.P.; VIVEIROS, BARBARA V.G. de; PEREIRA, VICTOR F.; ANTUNES, RENATO A.; MACHADO, CARULINE S.C.; ARAUJO, JOAO V.S.; COSTA, ISOLDA. Galvanic and asymmetry effects on the local electrochemical behavior of the 2098-T351 alloy welded by friction stir welding. Journal of Materials Science & Technology, v. 45, p. 162-175, 2020. DOI: 10.1016/j.jmst.2019.11.016. Disponível em: http://repositorio.ipen.br/handle/123456789/31404. Acesso em: 16 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.