Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistance

ABSTRACT This article aimed to analyze the effect of the thermal oxidation in the corrosion resistance and the hardness properties of TiO2 nanostructures obtained by the anodizing process in the HF/H3PO4 solution TiO2 nanostructures on Ti6Al4V obtained by anodizing processes were subjected to therma...

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Autores principales:	Muñoz-Mizuno,Andrea, Cely-Bautista,Mercedes, Jaramillo-Colpas,Javier, Hincapie,Duberney, Calderón-Hernández,José Wilmar
Lenguaje:	English
Publicado:	Universidad de Tarapacá. 2020
Materias:	Nanostructures TiO2 nanohardness EIS thermal oxidation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052020000300362
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spelling	oai:scielo:S0718-330520200003003622020-11-03Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistanceMuñoz-Mizuno,AndreaCely-Bautista,MercedesJaramillo-Colpas,JavierHincapie,DuberneyCalderón-Hernández,José Wilmar Nanostructures TiO2 nanohardness EIS thermal oxidation ABSTRACT This article aimed to analyze the effect of the thermal oxidation in the corrosion resistance and the hardness properties of TiO2 nanostructures obtained by the anodizing process in the HF/H3PO4 solution TiO2 nanostructures on Ti6Al4V obtained by anodizing processes were subjected to thermal oxidation (TO) treatments over a temperature range from 500 °C to 620 °C for 2 hours. Surface morphology was evaluated by using scanning electron microscopy; the hardness properties of TiO2 nanostructures were obtained by Nanoindentation measurements using a Berkovich probe with a tip radius of 150 mm. The corrosion behavior of the samples was studied using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The results showed that TiO2 nanostructures, modified by thermal oxidation, increased the surface properties of hardness and corrosion resistance, compared to the substrate, maintaining its mixed or tubular structure. On the other hand, a transformation of nanotubes to nanopores after 600°C was evidenced, generating significant changes in the mechanical properties of these structures.info:eu-repo/semantics/openAccessUniversidad de Tarapacá.Ingeniare. Revista chilena de ingeniería v.28 n.3 20202020-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052020000300362en10.4067/S0718-33052020000300362
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Nanostructures TiO2 nanohardness EIS thermal oxidation
spellingShingle	Nanostructures TiO2 nanohardness EIS thermal oxidation Muñoz-Mizuno,Andrea Cely-Bautista,Mercedes Jaramillo-Colpas,Javier Hincapie,Duberney Calderón-Hernández,José Wilmar Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistance
description	ABSTRACT This article aimed to analyze the effect of the thermal oxidation in the corrosion resistance and the hardness properties of TiO2 nanostructures obtained by the anodizing process in the HF/H3PO4 solution TiO2 nanostructures on Ti6Al4V obtained by anodizing processes were subjected to thermal oxidation (TO) treatments over a temperature range from 500 °C to 620 °C for 2 hours. Surface morphology was evaluated by using scanning electron microscopy; the hardness properties of TiO2 nanostructures were obtained by Nanoindentation measurements using a Berkovich probe with a tip radius of 150 mm. The corrosion behavior of the samples was studied using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The results showed that TiO2 nanostructures, modified by thermal oxidation, increased the surface properties of hardness and corrosion resistance, compared to the substrate, maintaining its mixed or tubular structure. On the other hand, a transformation of nanotubes to nanopores after 600°C was evidenced, generating significant changes in the mechanical properties of these structures.
author	Muñoz-Mizuno,Andrea Cely-Bautista,Mercedes Jaramillo-Colpas,Javier Hincapie,Duberney Calderón-Hernández,José Wilmar
author_facet	Muñoz-Mizuno,Andrea Cely-Bautista,Mercedes Jaramillo-Colpas,Javier Hincapie,Duberney Calderón-Hernández,José Wilmar
author_sort	Muñoz-Mizuno,Andrea
title	Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistance
title_short	Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistance
title_full	Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistance
title_fullStr	Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistance
title_full_unstemmed	Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistance
title_sort	effect on thermal oxidation in tio2 nanostructures on nanohardness and corrosion resistance
publisher	Universidad de Tarapacá.
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052020000300362
work_keys_str_mv	AT munozmizunoandrea effectonthermaloxidationintio2nanostructuresonnanohardnessandcorrosionresistance AT celybautistamercedes effectonthermaloxidationintio2nanostructuresonnanohardnessandcorrosionresistance AT jaramillocolpasjavier effectonthermaloxidationintio2nanostructuresonnanohardnessandcorrosionresistance AT hincapieduberney effectonthermaloxidationintio2nanostructuresonnanohardnessandcorrosionresistance AT calderonhernandezjosewilmar effectonthermaloxidationintio2nanostructuresonnanohardnessandcorrosionresistance
_version_	1714203481571590144

Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistance

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