Localized corrosion of laser marked M340 martensitic stainless steel for biomedical applications studied by the scanning vibrating electrode technique under polarization
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Electrochimica Acta
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The corrosion of laser marked M340 martensitic stainless steel for biomedical applications was investigated using the scanning vibrating electrode technique (SVET) under simultaneous polarization and cyclic voltammetry in a 0.1 M NaCl solution. The laser marking greatly increases the active dissolution of the affected region and decreases the pitting potential due to Cr loss by volatilization and oxidation on the laser-melted zone. Laser marking also increases cathodic currents on the formed oxide resulting in a higher susceptibility to active dissolution and pitting corrosion.
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MANHABOSCO, SARA M.; SANTOS, ALVARO P. dos; MARCOLIN, MARCELO L.; PIERETTI, EURICO F.; NEVES, MAURICIO D.M.; DICK, LUIS F.P. Localized corrosion of laser marked M340 martensitic stainless steel for biomedical applications studied by the scanning vibrating electrode technique under polarization. Electrochimica Acta, v. 200, p. 189-196, 2016. Disponível em: http://repositorio.ipen.br/handle/123456789/26499. Acesso em: 21 Jul 2026.
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