Electrodeposition of amorphous Fe-Cr-Ni stainless steel alloy with high corrosion resistance, low cytotoxicity and soft magnetic properties

Electrodeposition of Fe-Cr-Ni alloy thin films with high corrosion resistance, low cytotoxicity and soft-magnetic properties is reported. Fe-Cr-Ni films with Cr contents from 5 wt% to 40 wt% were prepared by adjusting the current density during electrodeposition and the film properties were investig...

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Detalles Bibliográficos
Autores: Bertero, Enrico|||0000-0001-6952-8741, Hasegawa, Madoka, Staubli, Samuel, Pellicer, Eva|||0000-0002-8901-0998, Herrmann, Inge K., Sort, Jordi|||0000-0003-1213-3639, Michler, Johann|||0000-0001-8860-4068, Philippe, Laetitia|||0000-0003-0928-4487
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:203893
Acceso en línea:https://ddd.uab.cat/record/203893
https://dx.doi.org/urn:doi:10.1016/j.surfcoat.2018.06.003
Access Level:acceso abierto
Palabra clave:ElectrodepositionS
Tainless steel
Corrosion resistance
Cytotoxicity
Soft ferromagnetic material
Descripción
Sumario:Electrodeposition of Fe-Cr-Ni alloy thin films with high corrosion resistance, low cytotoxicity and soft-magnetic properties is reported. Fe-Cr-Ni films with Cr contents from 5 wt% to 40 wt% were prepared by adjusting the current density during electrodeposition and the film properties were investigated. An excellent corrosion resistance was found in films with high Cr contents (≥30 wt%), where anodic polarization performance similar to those of AISI 304 and 316L stainless steels was observed in both acidic and biological media. Cell compatibility, measured by lactate dehydrogenase assay, demonstrated that electrodeposited Fe-Cr-Ni films exhibit low cytotoxicity, comparable to AISI 304 and 316L stainless steels. Unlike AISI 304 and AISI 316L, which are conventional austenite stainless steels, the electrodeposited Fe-Cr-Ni films were found to be amorphous. This leads to soft ferromagnetic characteristics, which are dependent on the alloy composition. The unique combination of excellent corrosion resistance, low cytotoxicity and tunable magnetic properties makes this material interesting for functional coatings and components in advanced biological and medical microsystems.

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