Dual Electrochemical Treatments to Improve Properties of Ti6Al4V Alloy

Autor: Luciana Volgare, Carine Perrin-Pellegrino, Erick Dousset, Stefano Rossi, Marielle Eyraud, Carine Chassigneux
Přispěvatelé: University of Trento [Trento], Matériaux divisés, interfaces, réactivité, électrochimie (MADIREL), Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux, de Microélectronique et des Nanosciences de Provence (IM2NP), Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Nanotube
Materials science
Oxide
wettability
02 engineering and technology
010402 general chemistry
lcsh:Technology
01 natural sciences
Article
[SPI.MAT]Engineering Sciences [physics]/Materials
Corrosion
chemistry.chemical_compound
TiO2 nanotubes
General Materials Science
Thin film
lcsh:Microscopy
bulk thermal treatment
lcsh:QC120-168.85
corrosion
lcsh:QH201-278.5
lcsh:T
bulk oxide layer
technology
industry
and agriculture
Titanium alloy
[CHIM.MATE]Chemical Sciences/Material chemistry
021001 nanoscience & nanotechnology
equipment and supplies
0104 chemical sciences
Amorphous solid
chemistry
Chemical engineering
lcsh:TA1-2040
Transmission electron microscopy
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
lcsh:Engineering (General). Civil engineering (General)
0210 nano-technology
lcsh:TK1-9971
Ethylene glycol
Zdroj: Materials
Volume 13
Issue 11
Materials, Vol 13, Iss 2479, p 2479 (2020)
Materials, MDPI, 2020, 13 (11), pp.2479. ⟨10.3390/ma13112479⟩
Materials, 2020, 13 (11), pp.2479. ⟨10.3390/ma13112479⟩
ISSN: 1996-1944
DOI: 10.3390/ma13112479
Popis: Surface treatments are considered as a good alternative to increase biocompatibility and the lifetime of Ti-based alloys used for implants in the human body. The present research reports the comparison of bare and modified Ti6Al4V substrates on hydrophilicity and corrosion resistance properties in body fluid environment at 37 °
C. Several surface treatments were conducted separately to obtain either a porous oxide layer using nanostructuration (N) in ethylene glycol containing fluoride solution, or bulk oxide thin films through heat treatment at 450 °
C for 3 h (HT), or electrochemical oxidation at 1 V for 3 h (EO), as well as combined treatments (N-HT and N-EO). In-situ X-ray diffraction and ex-situ transmission electron microscopy have shown that heat treatment gave first rise to the formation of a 30 nm thick amorphous layer which crystallized in rutile around 620 °
C. Electrochemical oxidations gave rise to a 10 nm thick amorphous film on the top of the surface (EO) or below the amorphous nanotube layer (N-EO). Dual treated samples presented similar results with a more stable behavior for N-EO. Finally, for both corrosion and hydrophilicity points of view, the new combined treatment to get a total amorphous N-EO sample seems to be the best and even better than the partially crystallized N-HT sample.
Databáze: OpenAIRE
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