Electrochemical behaviour of 22MnB5 steel coated with hot-dip Al-Si before and after hot-stamping process investigated by means of scanning Kelvin probe microscopy
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Corrosion Science
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Press-hardened steels are commonly protected with hot-dip Al-Si coating. Due to the electrochemical complexity
of this system, either before or after hot-stamping process, SKPFM was used to investigate the influence of the
thermo-mechanical process on the electrochemical behaviour of the galvanic coupling. The hot-stamping process
changed significantly the anodic/cathodic coupling of the coating/steel due to iron enrichment in the coating
layer. Hence, a concurrent mechanism was thoroughly established, i.e., while the press hardening enhances the
corrosion properties of the steel system (steel and metallic coating) through diffusion, at the same time it diminishes
the cathodic protection of the Al-Si layer.
Como referenciar
COUTO, CAMILA P.; REVILLA, REYNIER I.; COLOSIO, MARCO A.; COSTA, ISOLDA; PANOSSIAN, ZEHBOUR; DE GRAEVE, IRIS; TERRYN, HERMAN; ROSSI, JESUALDO L. Electrochemical behaviour of 22MnB5 steel coated with hot-dip Al-Si before and after hot-stamping process investigated by means of scanning Kelvin probe microscopy. Corrosion Science, v. 174, p. 1-10, 2020. DOI: 10.1016/j.corsci.2020.108811. Disponível em: http://repositorio.ipen.br/handle/123456789/31359. Acesso em: 30 Dec 2025.
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.