Electrodeposition of amorphous Fe-Cr-Ni stainless steel alloy with high corrosion resistance, low cytotoxicity and soft magnetic properties
Bertero, Enrico (Eidgenössische Materialprüfungs- und Forschungsanstalt)
Hasegawa, Madoka (Eidgenössische Materialprüfungs- und Forschungsanstalt)
Staubli, Samuel (Eidgenössische Materialprüfungs- und Forschungsanstalt)
Pellicer Vilà, Eva Maria (Universitat Autònoma de Barcelona. Departament de Física)
Herrmann, Inge K. (Eidgenössische Materialprüfungs- und Forschungsanstalt)
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Michler, Johann (Eidgenössische Materialprüfungs- und Forschungsanstalt)
Philippe, Laetitia (Eidgenössische Materialprüfungs- und Forschungsanstalt)

Date:	2018
Abstract:	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.
Grants:	European Commission 642642 Ministerio de Economía y Competitividad MAT2017-86357-C3-1-R Ministerio de Economía y Competitividad RYC-2012-10839 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-292
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	ElectrodepositionS ; Tainless steel ; Corrosion resistance ; Cytotoxicity ; Soft ferromagnetic material
Published in:	Surface and coatings technology, Vol. 349 (Sep. 2018) , p. 745-751, ISSN 0257-8972

DOI: 10.1016/j.surfcoat.2018.06.003

Postprint 14 p, 407.6 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Group of Smart Nanoengineered Materials, Nanomechanics and Nanomagnetism (Gnm3)
Articles > Research articles
Articles > Published articles