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Influence of Surface Modification of Titanium and Its Alloys for Medical Implants on Their Corrosion Behavior

Pawłowski, Łukasz ; Rościszewska, Magda ; Majkowska-Marzec, Beata ; Jażdżewska, Magdalena ; Bartmański, Michał ; Zieliński, Andrzej ; Tybuszewska, Natalia ; Samsel, Pamela

Materials, 2022-10, Vol.15 (21), p.7556 [Periódico revisado por pares]

Basel: MDPI AG

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Título:
Influence of Surface Modification of Titanium and Its Alloys for Medical Implants on Their Corrosion Behavior
Autor: Pawłowski, Łukasz ; Rościszewska, Magda ; Majkowska-Marzec, Beata ; Jażdżewska, Magdalena ; Bartmański, Michał ; Zieliński, Andrzej ; Tybuszewska, Natalia ; Samsel, Pamela
Assuntos: Alloys ; Anodizing ; Arc deposition ; Biodegradability ; Biological products ; Biological properties ; Biomedical materials ; Biopolymers ; Body fluids ; Carbon nanotubes ; Chitosan ; Circuits ; Coatings ; Corrosion and anti-corrosives ; Corrosion currents ; Corrosion effects ; Corrosion potential ; Corrosion resistance ; Corrosion tests ; Current density ; Dispersants ; Graphene ; Implants, Artificial ; Lasers ; nano platinum ; Nanoparticles ; Open circuit voltage ; Oxidation ; polyamine ; Prosthesis ; Specialty metals industry ; Surface layers ; Surface treatment ; Surgical implants ; Titanium ; Titanium base alloys ; Titanium dioxide ; titanium oxide
É parte de: Materials, 2022-10, Vol.15 (21), p.7556
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
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Descrição: Titanium and its alloys are often used for long-term implants after their surface treatment. Such surface modification is usually performed to improve biological properties but seldom to increase corrosion resistance. This paper presents research results performed on such metallic materials modified by a variety of techniques: direct voltage anodic oxidation in the presence of fluorides, micro-arc oxidation (MAO), pulse laser treatment, deposition of chitosan, biodegradable Eudragit 100 and poly(4-vinylpyridine (P4VP), carbon nanotubes, nanoparticles of TiO2, and chitosan with Pt (nano Pt) and polymeric dispersant. The open circuit potential, corrosion current density, and potential values were determined by potentiodynamic technique, and microstructures of the surface layers and coatings were characterized by scanning electron microscopy. The results show that despite the applied modifications, the corrosion current density still appears in the region of very low values of some nA/cm2. However, almost all surface modifications, designed principally for the improvement of biological properties, negatively influence corrosion resistance. The reasons for observed effects can vary, such as imperfections and permeability of some coatings or accelerated degradation of biodegradable deposits in simulated body fluids during electrochemical testing. Despite that, all coatings can be accepted for biological applications, and such corrosion testing results are presumed not to be of major importance for their applications in medicine.
Editor: Basel: MDPI AG
Idioma: Inglês

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Influence of Surface Modification of Titanium and Its Alloys for Medical Implants on Their Corrosion Behavior

Pawłowski, Łukasz ; Rościszewska, Magda ; Majkowska-Marzec, Beata ; Jażdżewska, Magdalena ; Bartmański, Michał ; Zieliński, Andrzej ; Tybuszewska, Natalia ; Samsel, Pamela

Basel: MDPI AG

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